Postgresql 如何从其他表中的自动增量值向表中插入值：postgressql（更新并插入两个表）

我正在尝试从表“tbl\U artc”中的自动增量插入值“artc\U id”将值“stock\U artc”int4插入表“tbl\U stock”：

解决方案：

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我无法理解你的密码。但我相信它可以简单得多。提示1：使用

INSERT。。。在发生冲突时，请更新…

。提示2：使用

返回

子句。非常感谢，这对我来说真的很有用：

CREATE OR REPLACE FUNCTION "public"."update_artc"("_artc_id" int4, "_artc_name" varchar, "_artc_fourn" int4, "_artc_sector" int4, "_stock_min" int4)
      RETURNS "pg_catalog"."void" AS $BODY$
        -- Routine body goes here...

        DECLARE 
        BEGIN 
            UPDATE tbl_artc SET 
                    artc_name = _artc_name,artc_fourn=_artc_fourn,artc_sector=_artc_sector
                    WHERE artc_id = _artc_id ; 
    IF NOT FOUND THEN 
            INSERT INTO tbl_artc(artc_name,artc_fourn,artc_sector)
    VALUES
    (_artc_name,_artc_fourn,_artc_sector);
            END IF; 


    UPDATE tbl_stock
    SET stock_qt_min_alert = _stock_min
    WHERE stock_id_artc=_artc_id;
    IF NOT FOUND THEN 
    INSERT INTO tbl_stock(stock_id_artc,stock_qt_artc,stock_qt_min_alert)
    VALUES
    (artc_id,0,_stock_min);
    END IF; 

        RETURN;

    END$BODY$
      LANGUAGE plpgsql VOLATILE
      COST 100

CREATE OR REPLACE FUNCTION "public"."update_artc"("_artc_id" int4, "_artc_name" varchar, "_artc_fourn" int4, "_artc_sector" int4, "_stock_min" int4)
  RETURNS "pg_catalog"."void" AS $BODY$
    -- Routine body goes here...

        DECLARE tableId integer;
 BEGIN 
 UPDATE tbl_artc SET 
                artc_name = _artc_name,artc_fourn=_artc_fourn,artc_sector=_artc_sector
                WHERE artc_id = _artc_id ; 
IF NOT FOUND THEN 
        INSERT INTO tbl_artc (artc_name,artc_fourn,artc_sector) VALUES (_artc_name,_artc_fourn,_artc_sector) RETURNING artc_id INTO tableId;
        END IF; 

UPDATE tbl_stock
SET stock_qt_min_alert = _stock_min
WHERE stock_id_artc=_artc_id;
IF NOT FOUND THEN 
  INSERT INTO tbl_stock (stock_id_artc,stock_qt_artc,stock_qt_min_alert) VALUES (tableId,0,_stock_min);

END IF; 

    RETURN;

END$BODY$
  LANGUAGE plpgsql VOLATILE
  COST 100