WHILE(@@FETCH_STATUS=0)-- Loop through all tables in the databaseBEGININSERT#RESULTEXECUTEA_Search_StringInGivenTable@SearchString,@Table_Schema,@Table_Name;FETCHcurAllTablesINTO@Table_Schema,@Table_Name;END;-- whileCLOSEcurAllTables;DEALLOCATEcurAllTables;-- Return resultsSELECT*FROM#RESULTORDERB...
T-sql For in loop 变量循环语句 For 变量 in 循环开始的值 .. 循环结束的值(小于该值) Loop --做处理的语句 End Loop 例子: ---循环找出供应商 for i in 0 .. vendor_Total loop-- i 和 vendor_Total 在存储过程头部定义,vendor_Total 在循环之前已经赋值 if i = vendor_Total then str_vendor ...
问如何在TSQL中使用循环？EN人们希望学习批处理命令的一个普遍原因是要得到批处理强大的功能。如果你希望...
SQL Server Azure SQL 数据库 Azure SQL 托管实例 本主题列出了 T-SQL 的外围应用以及本机编译 T-SQL 模块主体支持的功能,如存储过程 (CREATE PROCEDURE (Transact-SQL))、标量用户定义函数、内联表值函数和触发器。 有关本机模块定义的支持功能,请参阅对于本机编译的 T-...
Can I EXECUTE a SQL Server Stored Procedure with Parameters and store the result set to a CTE Table so that I can then UNION to it Can I find out the "Listener" name through a SQL Server Query Can i give a rollup an Alias? Can I have a conditional JOIN? Can I have a primary ke...
Create a procedure to loop throughSourceTableand insert rows. Note There are syntax differences between T-SQL for theCREATE PROCEDUREand theCURSORdeclaration. For more information, seeStored Procedures. CREATE PROCEDURE LoopItems() BEGIN DECLARE done INT DEFAULT FALSE; DECLARE...
Azure SQL Database and SQL Server starting SQL Server 2017 (14.x): ALTER TABLE, ALTER PROCEDURE, and sp_rename operations are supported. Other schema changes, for example adding extended properties, are not supported. SQL Server 2016 (13.x): ALTER TABLE and ALTER PROCEDURE operations are sup...
Create a procedure to declare a cursor and loop through the order items. CREATE OR REPLACE FUNCTION P() RETURNS numeric LANGUAGE plpgsql AS $function$ DECLARE done int default false; var_OrderID int; var_NumItems int; OrderItemCursor CURSOR FOR SELECT OrderID, ...
有关详细信息,请参阅 WITH common_table_expression。 NO_PERFORMANCE_SPOOL 适用于:SQL Server(从 SQL Server 2016 (13.x) 开始)和 Azure SQL 数据库。 防止将 spool 运算符添加到查询计划(需要 spool 保证更新语义有效的计划除外)。 在某些情况下,spool 运算符可能会降低性能。 例如,如果有大量查询与 spool...
NULL FROM user_tables WHERE table_name = 'SYSTEM_USER') LOOP EXECUTE IMMEDIATE 'DROP TABLE system_user CASCADE CONSTRAINTS'; END LOOP; FOR i IN (SELECT NULL FROM user_sequences WHERE sequence_name = 'SYSTEM_USER_S1') LOOP EXECUTE IMMEDIATE 'DROP SEQUENCE system_user_s1'; END LOOP; END...