CREATE{PROC|PROCEDURE}[schema_name.]procedure_name[; number][{ @parameter [ type_schema_name.]data_type }[VARYING][= default][OUT | OUTPUT][READONLY]][,...n][WITH <procedure_option> [ ,...n]][FOR REPLICATION]AS{<sql_statement>[;][...n]|<method_specifier>}[;]<procedure_option...
IF 语句可以基于条件选择性执行操作, PL/pgSQL 提供了三种形式的 IF 语句。 IF ... THEN ... END IF IF ... THEN ... ELSE ... END IF IF ... THEN ... ELSIF ... THEN ... ELSE ... END IF 首先,最简单的 IF 语句如下: IF boolean-expression THEN statements END IF; 如果表达式 bool...
show procedure status\G show procedure status like 'sp1'\G show create procedure sp1\G select * from information_schema.routines\G select * from mysql.proc\G drop procedure if exists sp1; 2、sp应用 判断(if) if a = 100 then – 注意判断相等就是= select ‘a’; select ’b’; elseif a...
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procedurecalls: function evaluation returnstatement: local variabledeclaration: assignments compoundstatement: IF, ELSEIFandELSE: LOOP: LEAVE: terminatethe loop WHILE: REPEAT: FOR: 4.3. Transitive Closure (Rercursion) WITH RECURSIVE: Recursive is a union of two subqueries: ...
To define a statement block, use the control-of-flow keywordsBEGINandEND. Remarks AnIF...ELSEconstruct can be used in batches, in stored procedures, and in ad hoc queries. When this construct is used in a stored procedure, it's usually to test for the existence of some parameter. ...
To define a statement block, use the control-of-flow keywords BEGIN and END. Remarks An IF...ELSE construct can be used in batches, in stored procedures, and in ad hoc queries. When this construct is used in a stored procedure, it is frequently used to test for the existence of some...
There are multiple ways to provide parameters and values in stored procedure EXECUTE statements. The following examples show several different options for the EXECUTE statement. If you provide the parameter values in the same order as they're defined in the stored procedure, you don't need to st...
Transact-SQL syntax for stored procedures in Microsoft Fabric:syntaxsql คัดลอก CREATE [ OR ALTER ] { PROC | PROCEDURE } [ schema_name.] procedure_name [ { @parameter data_type } [ OUT | OUTPUT ] ] [ ,...n ] AS { [ BEGIN ] sql_statement [;][ ,...n ] [ ...