MySql觸發器語法錯誤1064空單引號

Question

我想在MySql 5.1.41中執行觸發器語句，但我得到的錯誤超出了我的理解範圍。任何幫助將不勝感激。

以下是觸發代碼：

create TRIGGER populate_modality_trigger AFTER INSERT on series 
FOR EACH ROW BEGIN 
DECLARE x int; 

select count(*) into x from lu_modality_alias l WHERE l.modality=NEW.modality; 
IF (x =0 OR x is NULL) THEN 
    INSERT INTO lu_modality_alias 
    set modality = NEW.modality, 
    modality_alias = NEW.modality 
; 
END if; 
end; 

當我上面的代碼運行，我得到以下錯誤：

MySQL said: Documentation #1064 - 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 '' at line 3

有趣的是，當我從Naviacat查詢編輯器中執行相同的代碼，它會成功運行並創建觸發器。 但是，從phpMyAdmin的SQL同樣失敗。

Answer 1

您需要更改分隔符所以MySQL的解析器並沒有結束，在第一個分號

delimiter // 

create TRIGGER populate_modality_trigger AFTER INSERT on series 
FOR EACH ROW BEGIN 
DECLARE x int; 

select count(*) into x from lu_modality_alias l WHERE l.modality=NEW.modality; 
IF (x =0 OR x is NULL) THEN 
    INSERT INTO lu_modality_alias 
    set modality = NEW.modality, 
    modality_alias = NEW.modality 
; 
END if; 
end // 

delimiter ;