Configuration Functions These scalar functions return information about current configuration option settings @@CONNECTIONS Number of opened or attempted connections true int @@DATEFIRST Current value of the SET DATEFIRST parameter true tinyint @@DBTS Current value of the timestamp data type true varbinary @@LANGUAGE Name of the language currently in use true nvarchar @@LANGID ID of the language currently in use true smallint @@LOCK_TIMEOUT Lock time-out setting for the current session true int @@MAX_CONNECTIONS Max number of simultaneous user connections true int @@MAX_PRECISION Precision level used by decimal and numeric data types true tinyint @@NESTLEVEL Nesting level of the current store procedure execution true int @@OPTIONS Information about the current SET options true int @@REMSERVER Name of the remote SQL Server database server true nvarchar(128) @@SPID ID of the current user process true smallint @@SERVERNAME Name of the local server running SQL Server true nvarchar @@SERVICENAME Name of the registry key under which SQL Server is running true nvarchar @@TEXTSIZE Current value of the TEXTSIZE option true int @@VERSION Date, version and processor type for the current installation true nvarchar Cursor Functions These scalar functions return information about cursors @@CURSOR_ROWS Number of qualifying rows in the last cursor opened true int @@FETCH_STATUS Status of the last cursor FETCH statement issued against any cursor true int CURSOR_STATUS A scalar function that shows whether or not the procedure has returned a cursor and result set for a given parameter smallint @param1 varchar cursor_name nvarchar Date and Time Functions These scalar functions perform an operation on a date and time input value and return a string, numeric, or date and time value DATEADD Returns a new datetime value based on adding an interval to the specified date datetime datepart Datepart Specifies on which part of the date to return a new value number int Used to increment datepart date datetime An expression that returns a datetime or smalldatetime value DATEDIFF Returns the number of date and time boundaries crossed between two specified dates int datepart Datepart Specifies on which part of the date to calculate the difference startdate datetime The beginning date for the calculation enddate datetime The ending date for the calculation DATENAME Returns a character string representing the specified datepart of the specified date nvarchar datepart Datepart Specifies the part of the date to return date datetime An expression that returns a datetime or smalldatetime value DATEPART Returns an integer representing the specified datepart of the specified date int datepart Datepart Specifies the part of the date to return date datetime An expression that returns a datetime or smalldatetime value DAY Returns an integer representing the day datepart of the specified date int date datetime Expression of type datetime or smalldatetime GETDATE Returns the current system date and time datetime MONTH Returns an integer that represents the month part of a specified date datetime YEAR Returns an integer that represents the year part of a specified date datetime GETUTCDATE Returns the datetime value representing the current UTC time datetime Mathematical Functions These scalar functions perform a calculation, usually based on input values provided as arguments, and return a numeric value ABS Returns the absolute, positive value of the given numeric expression numeric numeric_expression numeric Expression of the exact numeric or approximate numeric data type category, except for the bit data type ACOS Returns the angle, in radians, whose cosine is the given float expression float float_expression real Expression of the type float or real, with a value from -1 through 1 ASIN Returns the angle, in radians, whose sine is the given float expression float float_expression real Expression of the type float, with a value from -1 through 1 ATAN Returns the angle in radians whose tangent is the given float expression float float_expression float Expression of the type float ATN2 Returns the angle, in radians, whose tangent is between the two given float expressions float float_expression1 float Expression of the float data type float_expression2 float Expression of the float data type CEILING Returns the smallest integer greater than, or equal to, the given numeric expression numeric numeric_expression numeric Expression of the exact numeric or approximate numeric data type category, except for the bit data type COS Returns the trigonometric cosine of the given angle (in radians) in the given expression float float_expression float Expression of type float COT Returns the trigonometric cotangent of the specified angle (in radians) in the given float expression float float_expression float Expression of type float DEGREES Given an angle in radians, returns the corresponding angle in degrees numeric numeric_expression numeric Expression of the exact numeric or approximate numeric data type category, except for the bit data type EXP Returns the exponential value of the given float expression float float_expression float Expression of type float FLOOR Returns the largest integer less than or equal to the given numeric expression numeric numeric_expression numeric Expression of the exact numeric or approximate numeric data type category, except for the bit data type LOG Returns the natural logarithm of the given float expression float float_expression float Expression of the float data type LOG10 Returns the base-10 logarithm of the given float expression float float_expression float Expression of the float data type PI Returns the constant value of PI float POWER Returns the value of the given expression to the specified power numeric numeric_expression numeric Expression of the exact numeric or approximate numeric data type category, except for the bit data type Y numeric The power to which to raise numeric_expression RADIANS Returns radians when a numeric expression, in degrees, is entered numeric numeric_expression numeric Expression of the exact numeric or approximate numeric data type category, except for the bit data type RAND Returns a random float value from 0 through 1 float seed int An integer expression (tinyint, smallint, or int) that gives the seed or start value ROUND Returns a numeric expression, rounded to the specified length or precision numeric numeric_expression numeric Expression of the exact numeric or approximate numeric data type category, except for the bit data type length int The precision to which numeric_expression is to be rounded function int The type of operation to perform SIGN Returns the positive (+1), zero (0), or negative (-1) sign of the given expression float numeric_expression numeric Expression of the exact numeric or approximate numeric data type category, except for the bit data type SIN Returns the trigonometric sine of the given angle (in radians) in an approximate numeric (float) expression float float_expression float Expression of type float SQUARE Returns the square of the given expression float float_expression float Expression of type float SQRT Returns the square root of the given expression float float_expression float Expression of type float TAN Returns the tangent of the input expression float float_expression real Expression of type float or real, interpreted as number of radians Aggregate Functions Aggregate functions perform a calculation on a set of values and return a single value SUM The sum of the input values numeric expression numeric Constant, column, or function, and any combination of arithmetic, bitwise, and string operators MIN The lowest of the input values numeric expression numeric Constant, column, or function, and any combination of arithmetic, bitwise, and string operators MAX The highest of the input values numeric expression numeric Constant, column, or function, and any combination of arithmetic, bitwise, and string operators COUNT The number of input values (int) int expression Expression of any type except uniqueidentifier, text, image, or ntext COUNT(*) Number of selected rows (int) true int COUNT_BIG The number of input values (bigint) true bigint expression Expression of any type except uniqueidentifier, text, image, or ntext COUNT_BIG(*) Number of selected rows (bigint) bigint AVG Returns the average of the values in a group. Null values are ignored numeric expression numeric Expression of the exact numeric or approximate numeric data type category, except for the bit data type STDEV Returns the statistical standard deviation of all values in the given expression numeric expression numeric Numeric expression STDEVP Returns the statistical standard deviation for the population for all values in the given expression numeric expression numeric Numeric expression VAR Returns the statistical variance of all values in the given expression numeric expression numeric Expression of the exact numeric or approximate numeric data type category, except for the bit data type VARP Returns the statistical variance for the population for all values in the given expression numeric expression numeric Expression of the exact numeric or approximate numeric data type category, except for the bit data type BINARY_CHECKSUM Returns the binary checksum value computed over a row of a table or over a list of expressions numeric expression numeric Expression of any type CHECKSUM Returns the checksum value computed over a row of a table, or over a list of expressions numeric expression numeric Expression of any type except a noncomparable data type CHECKSUM_AGG Returns the checksum of the values in a group numeric expression numeric Constant, column, or function, and any combination of arithmetic, bitwise, and string operators GROUPING Causes an additional column to be output with a value of 1 or 0 numeric column_name sysname Column in a GROUP BY clause to check for CUBE or ROLLUP null values Metadata Functions These scalar functions return information about the database and database objects COL_LENGTH Returns the defined length of a column int table nvarchar Name of the table for which to determine column length information column nvarchar Name of the column for which to determine length COL_NAME Returns the name of a database column sysname table_id int Identification number of the table containing the database column column_id int Identification number of the column COLUMNPROPERTY Returns information about a column or procedure parameter int id int Expression containing the identifier (ID) of the table or procedure column nvarchar Expression containing the name of the column or parameter property nvarchar Expression containing the information to be returned for id DATABASEPROPERTY Returns the named database property value for the given database and property name int database nvarchar(128) Expression containing the name of the database for which to return the named property information property nvarchar Expression containing the name of the database property to return DATABASEPROPERTYEX Returns the current setting of the specified database option or property for the specified database sql_variant database nvarchar(128) Expression that evaluates to the name of the database for which a property setting is to be returned property nvarchar(128) Expression that indicates the option or property setting to be returned DB_ID Returns the database identification (ID) number smallint database nvarchar Database name used to return the corresponding database ID DB_NAME Returns the database name nvarchar(128) database_id smallint Identification number (ID) of the database to be returned FILE_ID Returns the file identification number (file ID) for the given logical file name smallint file_name nchar(128) Name of the file for which to return the file ID FILE_NAME Returns the logical file name for the given file identification number (ID) nvarchar(128) file_id smallint File identification number for which to return the file name FILEGROUP_ID Returns the filegroup identification number (ID) for the given filegroup name smallint filegroup_name nvarchar(128) Filegroup name for which to return the filegroup ID FILEGROUP_NAME Returns the filegroup name for the given filegroup identification number (ID) nvarchar(128) filegroup_id smallint Filegroup ID number for which to return the filegroup name FILEGROUPPROPERTY Returns the specified filegroup property value when given a filegroup and property name int filegroup_name nvarchar(128) Expression containing the name of the filegroup for which to return the named property information property varchar(128) Expression containing the name of the filegroup property to return FILEPROPERTY Returns the specified file name property value when given a file name and property name int file_name nchar(128) Expression containing the name of the file associated with the current database for which to return property information property varchar(128) Expression containing the name of the file property to return FULLTEXTCATALOGPROPERTY Returns information about full-text catalog properties int catalog_name nchar(128) Expression containing the name of the full-text catalog property varchar(128) Expression containing the name of the full-text catalog property FULLTEXTSERVICEPROPERTY Returns information about full-text service-level properties int property varchar(128) Expression containing the name of the full-text service-level property INDEX_COL Returns the indexed column name nchar table nvarchar Name of the table index_id int ID of the index key_id int ID of the key INDEXKEY_PROPERTY Returns information about the index key int table_id int Table identification number index_id int Index identification number key_id int Index column position property varchar(128) Name of the property for which information will be returned INDEXPROPERTY Returns the named index property value given a table identification number, index name, and property name int table_id int Expression containing the identification number of the table or indexed view for which to provide index property information index nvarchar(128) Expression containing the name of the index for which to return property information property varchar(128) Expression containing the name of the database property to return OBJECT_ID Returns the database object identification number int object nchar Object to be used OBJECT_NAME Returns the database object name nchar object_id int ID of the object to be used OBJECTPROPERTY Returns information about objects in the current database int id int Expression containing the ID of the object in the current database property varchar(128) Expression containing the information to be returned for the object specified by id @@PROCID Returns the stored procedure identifier (ID) of the current procedure true int TYPEPROPERTY Returns information about a data type int type nvarchar Name of the data type property varchar(128) Type of information to be returned for the data type SQL_VARIANT_PROPERTY Returns the base data type and other information about a sql_variant value sql_variant expression sql_variant Expression of type sql_variant property varchar(128) Contains the name of the sql_variant property for which information is to be provided fn_listextendedproperty Returns extended property values of database objects property_name sysname Name of the property level0_object_type varchar(128) User or user-defined type level0_object_name sysname Name of the level 0 object type specified level1_object_type varchar(128) Type of level 1 object level1_object_name sysname Name of the level 1 object type specified level2_object_type varchar(128) Type of level 2 object level2_object_name sysname Name of the level 2 object type specified Security Functions These scalar functions return information about users and roles IS_MEMBER Indicates whether the current user is a member of the specified NT group or SQL Server role int group_or_role sysname Name of the Windows NT group or SQL Server role being checked IS_SRVROLEMEMBER Indicates whether the current user login is a member of the specified server role int role sysname Name of the server role being checked login sysname Optional name of the login to check SUSER_ID Returns the user's login identification number int login nchar Username to be used SUSER_NAME Returns the user's login identification name nchar server_user_id int SUSER_SID Returns the security identification number(SID) for the user's login name int login sysname User's login name SUSER_SNAME Returns the login identification name from a user's security identification number(SID) nchar server_user_id varbinary(85) User security identification number USER_ID Returns a user's database identification number int user nchar Username to be used USER_NAME Returns a user database username from a given identification number nchar id int USER Allows a system-supplied value for the current user's database username to be inserted into a table true char HAS_DBACCESS Returns information about whether the user has access to the specified database int database_name sysname Name of the database for which the user wants access information fn_trace_geteventinfo Returns information about the events being traced trace_id int ID of the trace fn_trace_getfilterinfo Returns information about the filters applied to a specified trace trace_id int ID of the trace fn_trace_getinfo Returns information about a specified trace or existing traces trace_id int ID of the trace fn_trace_gettable Returns trace file information in a table format filename nvarchar(256) Initial trace to be read numfiles int Number of rollover files, including the initial file specified in filename, to be read String Functions These scalar functions perform an operation on a string input value and return a string or numeric value ASCII Returns the ASCII code value of the leftmost character of a character expression int character_expression varchar Expression of the type char or varchar CHAR A string function that converts an int ASCII code to a character char(1) integer_expression int Integer from 0 through 255 CHARINDEX Returns the starting position of the specified expression in a character string int expression1 varchar Expression containing the sequence of characters to be found expression2 varchar Expression, usually a column searched for the specified sequence start_location int Character position to start searching for expression1 in expression2 DIFFERENCE Returns the difference between the SOUNDEX values of two character expressions as an integer int character_expression1 varchar Expression of type char or varchar character_expression2 varchar Expression of type char or varchar LEFT Returns the part of a character string starting at a specified number of characters from the left varchar character_expression varchar Expression of character or binary data integer_expression int Positive whole number LEN Returns the number of characters, rather than the number of bytes, of the given string expression, excluding trailing blanks int string_expression varchar String expression to be evaluated LOWER Returns a character expression after converting uppercase character data to lowercase varchar character_expression varchar Expression of character or binary data LTRIM Returns a character expression after removing leading blanks varchar character_expression varchar Expression of character or binary data NCHAR Returns the Unicode character with the given integer code, as defined by the Unicode standard nchar(1) integer_expression int Positive whole number from 0 through 65535 PATINDEX Returns starting position of first occurrence of a pattern in a specified expression, or zeros if pattern is not found int pattern varchar Literal string expression varchar Expression, usually a column that is searched for the specified pattern REPLACE Replaces all occurrences of the second given string expression in the first string expression with a third expression varchar string_expression1 varchar String expression to be searched string_expression2 varchar String expression to try to find string_expression3 varchar Replacement string expression QUOTENAME Returns a Unicode string with the delimiters added to make the input string a valid delimited identifier nvarchar(129) character_string sysname String of Unicode character data quote_character varchar One-character string to use as the delimiter REPLICATE Repeats a character expression a specified number of times varchar character_expression varchar Alphanumeric expression of character data integer_expression int Positive whole number REVERSE Returns the reverse of a character expression varchar character_expression varchar Expression of character data RIGHT Returns the part of a character string starting a specified number of integer_expression characters from the right varchar character_expression varchar Expression of character data integer_expression int Starting position, expressed as a positive whole number RTRIM Returns a character string after removing all trailing blanks varchar character_expression varchar Expression of character data SOUNDEX Returns a four-character (SOUNDEX) code to evaluate the similarity of two strings char character_expression varchar Alphanumeric expression of character data SPACE Returns a string of repeated spaces char integer_expression int Positive integer that indicates the number of spaces STR Returns character data converted from numeric data char float_expression float Expression of approximate numeric (float) data type with a decimal point length int Total length, including decimal point, sign, digits, and spaces decimal int Number of places to the right of the decimal point STUFF Deletes a specified length of characters and inserts another set of characters at a specified starting point varchar character_expression1 varchar Expression of character data start int Integer value that specifies the location to begin deletion and insertion length int Integer that specifies the number of characters to delete character_expression2 varchar Expression of character data SUBSTRING Returns part of a character, binary, text, or image expression varchar_nvarchar_varbinary expression1 varchar_nvarchar_varbinary Character string, binary string, text, image, a column, or an expression that includes a column start int Integer that specifies where the substring begins length int Integer that specifies the length of the substring (the number of characters or bytes to return) UNICODE Returns the integer value, as defined by the Unicode standard, for the first character of the input expression int ncharacter_expression nvarchar nchar or nvarchar expression UPPER Returns a character expression with lowercase character data converted to uppercase varchar character_expression varchar Expression of character data System Functions These scalar functions perform operations on and return information about values, objects, and settings in Microsoft® SQL Server™ APP_NAME Returns the application name for the current session if set by the application nvarchar(128) CASE Evaluates a list of conditions and returns one of multiple possible result expressions boolean input_expression expression Any valid Microsoft® SQL Server™ expression CAST Explicitly converts an expression of one data type to another expression Any valid Microsoft® SQL Server™ expression type_name Target system-supplied data type, including bigint and sql_variant COALESCE Returns the first nonnull expression among its arguments expression Expression of any type CONVERT Explicitly converts an expression of one data type to another expression Any valid Microsoft® SQL Server™ expression type_name Target system-supplied data type, including bigint and sql_variant style varchar Style of date format used to convert CURRENT_TIMESTAMP Returns the current date and time. This function is equivalent to GETDATE() true datetime CURRENT_USER Returns the current user. This function is equivalent to USER_NAME() true sysname DATALENGTH Returns the number of bytes used to represent any expression int expression Expression of any type @@ERROR Returns the error number for the last Transact-SQL statement executed true int FORMATMESSAGE Constructs a message from an existing message in sysmessages nvarchar msg_number int ID of the message stored in sysmessages param_value One or more parameter values for use in the message GETANSINULL Returns the default nullability for the database for this session int database nchar Name of the database for which to return nullability information HOST_ID Returns the workstation identification number char(8) HOST_NAME Returns the workstation name nchar IDENT_INCR Returns the increment value specified during the creation of an identity column in a table or view that has an identity column numeric table_or_view nvarchar Expression specifying the table or view to check for a valid identity increment value IDENT_SEED Returns the seed value specified during the creation of an identity column in a table or a view that has an identity column numeric table_or_view nvarchar Expression specifying the table or view to check for a valid identity seed value @@IDENTITY Returns the last-inserted identity value true numeric IDENTITY Used in a SELECT statement with an INTO table clause to insert an identity column into a new table nvarchar data_type Data type of the identity column seed int Value to be assigned to the first row in the table increment int Increment to add to the seed value for successive rows in the table ISDATE Determines whether an input expression is a valid date int expression varchar Expression to be validated as a date ISNULL Replaces NULL with the specified replacement value check_expression Expression to be checked for NULL replacement_value Expression to be returned if check_expression is NULL ISNUMERIC Determines whether an expression is a valid numeric type int expression Expression to be evaluated NEWID Creates a unique value of type uniqueidentifier uniqueidentifier NULLIF Returns a null value if the two specified expressions are equivalent expression1 Constant, column name, function, subquery, or any combination of arithmetic, bitwise, and string operators expression2 Constant, column name, function, subquery, or any combination of arithmetic, bitwise, and string operators PARSENAME Returns the specified part of an object name nchar object_name sysname name of the object for which to retrieve the specified object part object_piece int Object part to return PERMISSIONS Returns a value containing a bitmap that indicates the statement, object, or column permissions for the current user int objectid int ID of an object column nvarchar Optional name of a column for which permission information is being returned @@ROWCOUNT Returns the number of rows affected by the last statement true int ROWCOUNT_BIG Returns the number of rows affected by the last statement executed (bigint) bigint SESSION_USER Allow system-supplied value for current session's username to be inserted into a table when no default value is specified true nchar STATS_DATE Returns the date that the statistics for the specified index were last updated datetime table_id int ID of the table used index_id int ID of the index used SYSTEM_USER Allows a system-supplied value for the current system username to be inserted into a table when no default value is specified true nchar @@TRANCOUNT Returns the number of active transactions for the current connection true int USER_NAME Returns a user database username from a given identification number nchar id int Identification number used to return a user's name COLLATIONPROPERTY Returns the property of a given collation sql_variant collation_name nvarchar(128) Name of the collation property varchar(128) Property of the collation SCOPE_IDENTITY Returns the last IDENTITY value inserted into an IDENTITY column in the same scope sql_variant SERVERPROPERTY Returns property information about the server instance sql_variant propertyname nvarchar Expression containing the property information to be returned for the server SESSIONPROPERTY Returns the SET options settings of a session sql_variant option nvarchar Current option setting for this session fn_helpcollations Returns a list of all the collations supported by Microsoft SQL Server 2000 fn_servershareddrives Returns the names of the shared drives that can be used by the clustered server fn_virtualservernodes Returns the list of nodes on which the virtual server can run System Statistical Functions These scalar functions return statistical information about the system @@CPU_BUSY Returns the time in milliseconds that the CPU has spent working since server was last started true int @@IDLE Returns the time in milliseconds that server has been idle since last started true int @@IO_BUSY Returns the time in milliseconds that server has spent performing input and output operations since it was last started true int @@PACK_RECEIVED Returns the number of input packets read from the network by server since last started true int @@PACK_SENT Returns the number of output packets written to the network by server since last started true int @@PACKET_ERRORS Returns the number of network packet errors that have occurred on server connections since server was last started true int @@TIMETICKS Returns the number of microseconds per tick true int @@TOTAL_ERRORS Returns the number of disk read/write errors encountered by server since last started true int @@TOTAL_READ Returns the number of disk reads (not cache reads) by server since last started true int @@TOTAL_WRITE Returns the number of disk writes by server since last started true int fn_virtualfilestats Returns I/O statistics for database files, including log files database_id int ID of the database file_id int ID of the file Text and Image Functions These scalar functions perform an operation on a text or image input value or column and return information about the value PATINDEX Returns starting position of first occurrence of a pattern in a specified expression, or zeros if pattern is not found int pattern nvarchar Literal string expression nvarchar Expression, usually a column that is searched for the specified pattern TEXTPTR Returns the text-pointer value that corresponds to a text, ntext, or image column in varbinary format varbinary column text, ntext, or image column to be used TEXTVALID A text, ntext, or image function that checks whether a given text pointer is valid int table.column nvarchar Name of the table to be used and name of the column to be used text_ptr Text pointer to be checked Rowset These rowset functions return an object that can be used in place of a table reference in a Transact-SQL statement CONTAINSTABLE Returns a table for those columns containing character-based data types for precise or fuzzy matches to single words and phrases table Name of the table that has been marked for full-text querying column Name of the column to search, which resides in table contains_search_condition varchar Specifies some text to search for in column top_n_by_rank int Specifies that only the n highest ranked matches, in descending order, are returned FREETEXTTABLE Returns a table for those columns containing character-based data types for values that match the meaning but not the exact wording of the text table Name of the table that has been marked for full-text querying column Name of the column to search, which resides in table freetext_string varchar Text to search for in the specified column top_n_by_rank int When an integer value, n, is specified, FREETEXTTABLE returns only the top n matches, ordered by rank OPENQUERY Executes the specified pass-through query on the given linked server, which is an OLE DB data source linked_server Identifier representing the name of the linked server query varchar Query string executed in the linked server OPENROWSET A one-time, ad hoc method of connecting and accessing remote data using OLE DB provider_name varchar Character string that represents the friendly name of the OLE DB provider as specified in the registry provider_string varchar Provider-specific connection string that is passed in as the DBPROP_INIT_PROVIDERSTRING property to initialize the OLE DB provider Object Object name that uniquely identifies the object to manipulate query varchar String constant sent to and executed by the provider OPENDATASOURCE Provides ad hoc connection information as part of a four-part object name without using a linked server name provider_name varchar Name registered as the PROGID of the OLE DB provider used to access the data source init_string varchar Connection string passed to the IDataInitialize interface of the destination provider OPENXML Provides a rowset view over an XML document idoc int Document handle of the internal representation of an XML document rowpattern nvarchar XPath pattern used to identify the nodes (in the XML document whose handle is passed in the idoc parameter) to be processed as rows flags byte Indicates the mapping that should be used between the XML data and the relational rowset, and how the spill-over column should be filled System Data Types The set of system-supplied data types bigint Integer (whole number) data from -2^63 through 2^63-1 binary Fixed-length binary data with a maximum length of 8,000 bytes bit Integer data with either a 1 or 0 value char Fixed-length non-Unicode character data with a maximum length of 8,000 characters cursor A data type for variables or stored procedure OUTPUT parameters that contain a reference to a cursor datetime Date and time data from January 1, 1753, through December 31, 9999 decimal Fixed precision and scale numeric data from -10^38 -1 through 10^38 -1 float Floating precision number data from -1.79E + 308 through 1.79E + 308 image Variable-length binary data with a maximum length of 2^31 - 1 bytes int Integer (whole number) data from -2^31 through 2^31 - 1 money Monetary data values from -2^63 through 2^63 - 1, with accuracy to a ten-thousandth of a monetary unit nchar Fixed-length Unicode data with a maximum length of 4,000 characters ntext Variable-length Unicode data with a maximum length of 2^30 - 1 characters numeric A synonym for decimal nvarchar Variable-length Unicode data with a maximum length of 4,000 characters real Floating precision number data from -3.40E + 38 through 3.40E + 38 rowversion A database-wide unique number smalldatetime Date and time data from January 1, 1900, through June 6, 2079 smallint Integer data from 2^15 through 2^15 - 1 smallmoney Monetary data values from -214,748.3648 through +214,748.3647 sql_variant A data type that stores values of various SQL Server-supported data types, except text, ntext, timestamp, and sql_variant sysname System-supplied user-defined data type that is a synonym for nvarchar(128) table A special data type that can be used to store a result set for later processing text Variable-length non-Unicode data with a maximum length of 2^31 - 1 characters timestamp A database-wide unique number tinyint Integer data from 0 through 255 uniqueidentifier A globally unique identifier (GUID) varbinary Variable-length binary data of n bytes. n must be a value from 1 through 8,000 varchar Variable-length non-Unicode data with a maximum of 8,000 characters