Question

所以，我一直试图让它发挥作用。我很沮丧，我无法弄清楚我做错了什么。我试图声明变量num并使用带有count的select into语句将值插入其中。之后我想做一个简单的if语句，它将根据结果运行更新或删除。我对Oracle Pl / SQL比较新，所以任何帮助都会非常感激。感谢

DECLARE
   num   number;
BEGIN
   SELECT COUNT (*)
     INTO num
     FROM csteinkamp.gai
    WHERE breed_ref_id = 455;

   IF (num > 5)
   THEN
      UPDATE csteinkamp.gai
         SET animal_nm = 'TEST'
       WHERE breed_ref_id = 455;
   ELSE
      DELETE FROM csteinkamp.gai
            WHERE breed_ref_id = 455;
   END;

Answer 1

if以end if;

结尾

DECLARE
   num   number;
BEGIN
   SELECT COUNT (*)
     INTO num
     FROM csteinkamp.gai
    WHERE breed_ref_id = 455;

   IF (num > 5)
   THEN
      UPDATE csteinkamp.gai
         SET animal_nm = 'TEST'
       WHERE breed_ref_id = 455;
   ELSE
      DELETE FROM csteinkamp.gai
            WHERE breed_ref_id = 455;
   END IF; -- End if.
END; -- End of the program block.

select into和if语句

1 个答案: