存储过程不必返回任何内容，在使用INOUT参数时只返回一行。所以你需要一个function：
存储过程不必返回任何内容，在使用INOUT参数时只返回一行。所以你需要一个function：
WHERE author_code = p_Author_code RETURNING salary INTO v_CurrentSalary; --如果作家p_Author_code不存在,则提示一个错误信息,并退出该存储过程 IFSQL%NOTFOUNDTHEN --准备长工资的作家不存在时,提示一个错误信息 RAISE_APPLICATION_ERROR(-20001,'没有代码为'|| p_Author_code ||'的作家存在'); ELSE ...
tg02 before insert on digoal for each row execute procedure debug(); CREATE TRIGGER postgres=# create trigger tg03 after insert on digoal for each row execute procedure debug(); CREATE TRIGGER postgres=# create trigger tg04 after insert on digoal for each statement execute procedure debug(); ...
PROCEDURE PROCEDURES PROGRAM PUBLICATION QUOTE RANGE READ REAL REASSIGN RECHECK RECURSIVE REF REFERENCES REFERENCING REFRESH REINDEX RELATIVE_P RELEASE RENAME REPEATABLE REPLACE REPLICA RESET RESTART RESTRICT RETURNING RETURNS REVOKE RIGHT ROLE ROLLBACK ROLLUP ROUTINE ROUTINES ROW ROWS RULE SAVEPOINT SCHEMA ...
procedure_name:过程名称。 parameter_declaration:参数声明,格式如下: parameter_name [ [ IN ] datatype [ { := | DEFAULT } expression ] | { OUT | IN OUT } [ NOCOPY ] datatype 1. 2. IN:输入参数。 OUT:输出参数。 IN OUT:输入输出参数。
declare a integer notnull;a:=32; 动态赋值 具体可查看官方文档http://postgres.cn/docs/12/plpgsql-statements.html 方式一:into子句 代码语言:javascript 复制 SELECTselect_expressionsINTO[STRICT]targetFROM...;INSERT...RETURNINGexpressionsINTO[STRICT]target;UPDATE...RETURNINGexpressionsINTO[STRICT]target;DELET...
INSERT INTO Employees (Name,DateOfBirth,City,Designation,JoiningDate) VALUES (EmpName, EmpDob, EmpCity, EmpDesignation, EmpJoiningDate ) RETURNING Id INTO EmpId; END $$; Listing 4. Figure 4. Let’s execute this procedure using the SQL statement as shown in listing 5. It wi...
* ProcedureCreate * * Note: allParameterTypes, parameterModes, parameterNames, trftypes, and proconfig * are either arrays of the proper types or NULL. We declare them Datum, * not "ArrayType *", to avoid importing array.h into pg_proc.h. ...
*); end if; if NEW.c1<=1 and NEW.c2<=1 then insert into t_result values (NEW.*); end if; return null; end; $$ language plpgsql strict; create trigger tg1 after insert on test for each row execute procedure tg1(); transaction type: ./test.sql scaling factor: 1 query mode: ...