{ <general_WITH_options> | <log_specific_options> } [ ,...n ] ] [;] --Back up all the databases on an instance of SQL Server (a server) ALTER SERVER CONFIGURATION SET SUSPEND_FOR_SNAPSHOT_BACKUP ON [;] BACKUP SERVER TO <backup_device> [ ,...n ] [ <MIRROR TO clause> ] [...
A character string that represents the friendly name (or PROGID) of the OLE DB provider as specified in the registry. provider_name has no default value. Provider name examples are Microsoft.Jet.OLEDB.4.0, SQLNCLI, or MSDASQL. 'datasource' A string constant that corresponds to a particular OL...
Create a query to remove last two characters of a string Create a view and change the data types of some variables Create a writable view in SQL DB create an index on just the date part of a datetime field Create Database Failed - Primary file must be at least 3 MB ... create dynam...
STATE_STORE_NULL_TYPE_ORDERING_COLS_NOT_SUPPORTED、STATE_STORE_UNSUPPORTED_OPERATION_ON_MISSING_COLUMN_FAMILY、STATE_STORE_VARIABLE_SIZE_ORDERING_COLS_NOT_SUPPORTED、UDTF_ALIAS_NUMBER_MISMATCH、UDTF_INVALID_ALIAS_IN_REQUESTED_ORDERING_STRING_FROM_ANALYZE_METHOD、UDTF_INVALID_REQUESTED_SELECTED_EXPRESSION_FRO...
varchar Remove trailing spaces to the last non-space character or to a single-space character for strings made up of only spaces. varbinary Remove trailing zeros. If an empty string (' ') is loaded into a column with a varchar or text data type, the default operation is to load a zero...
Applications that use attributes to transport string values that contain end-of-line characters won't receive these characters back as they are submitted. To avoid the normalization process, use the XML numeric character entities to encode all end-of-line characters.Low ...
Back up your databaseAlthough the Upsizing Wizard doesn't remove any data or database objects from your Access database, it's a good idea to create a backup copy of your Access database before you upsize it. Ensure you have adequate disk spaceYou m...
ON WHEN DOUBLE ONLY WHENEVER DROP OPEN WHERE ELSE OPTION WITH END OR WORK END-EXEC ORDER WRITE ESCAPE OUTER YEAR EXCEPT OUTPUT ZONE EXCEPTION 将来的关键字 下列关键字可能会在将来的 SQL Server 版本中保留使用,作为将来要实现的新功能。注意,不要使用这些关键字作为标识符。
end while; return return_str; end $$ -- 创建插入的存储过程 create procedure insert_user(in start int(10), in max_num int(10)) begin declare i int default 0; set autocommit = 0; repeat set i = i + 1; insert into tbl_user values ((start+i) ,rand_string(8), concat(rand_strin...
'VARCHAR', 'VARCHARACTER', 'VARIABLES', 'VARYING', 'VIEW', 'VIRTUAL', 'WAIT', 'WARNINGS', 'WEEK', 'WEIGHT_STRING', 'WHEN', 'WHERE', 'WHILE', 'WITH', 'WITHOUT', 'WORK', 'WRAPPER', 'WRITE', 'X509', 'XA', 'XID', 'XML', 'XOR', 'YEAR', 'YEAR_MONTH', 'ZEROFILL' ] ...