mysql - 为什么在mysql中此查询中出现语法错误

DB的新增功能，我正在编写查询，但需要帮助以找出语法错误。
查询：

SELECT IF (EXISTS(SELECT * FROM contact_address WHERE ad_ct_id = 1)) THEN
BEGIN
UPDATE contact_address set ad_city = 'Iraq'
END
ELSE
BEGIN
INSERT INTO contact_address (ad_ct_id, ad_type, ad_city)
VALUES (1, 'o', 'Iraq')
END
END IF;

错误：

ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') THEN
BEGIN
UPDATE contact_address set ad_city = 'Iraq'
END
ELSE
BEGIN
INSERT I' at line 1

谢谢

最佳答案

删除SELECT。

IF (EXISTS(SELECT * FROM contact_address WHERE ad_ct_id = 1)) THEN
BEGIN
    UPDATE contact_address set ad_city = 'Iraq'
END
ELSE
BEGIN
    INSERT INTO contact_address (ad_ct_id, ad_type, ad_city)
    VALUES (1, 'o', 'Iraq')
END
END IF;

关于mysql - 为什么在mysql中此查询中出现语法错误，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/59186508/