云数据库 GAUSSDB-动态调用存储过程:示例

时间:2024-11-02 18:49:42

示例

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
--创建存储过程proc_add。
gaussdb=# CREATE OR REPLACE PROCEDURE proc_add
(
    param1    in   INTEGER,
    param2    out  INTEGER,
    param3    in   INTEGER
)
AS
BEGIN
   param2:= param1 + param3;
END;
/

gaussdb=# DECLARE
    input1 INTEGER:=1;
    input2 INTEGER:=2;
    statement  VARCHAR2(200);
    param2     INTEGER;
BEGIN
   --声明调用语句
    statement := 'call proc_add(:col_1, :col_2, :col_3)';
    --执行语句
    EXECUTE IMMEDIATE statement
        USING IN input1, OUT param2, IN input2;
    dbe_output.print_line('result is: '||to_char(param2));
END;
/
result is: 3
ANONYMOUS BLOCK EXECUTE
--删除存储过程
gaussdb=# DROP PROCEDURE proc_add;
support.huaweicloud.com/distributed-devg-v8-gaussdb/gaussdb-12-0781.html