ERROR 1064 (42000) 如何更正语法？

Question

DELIMITER $$
CREATE PROCEDURE prc_inv_amounts (W_IN IN NUMBER)
AS
W_CHK NUMBER = 0;
W_SUBT NUMBER = 0;
W_TAX NUMBER = 0;
BEGIN
SELECT COUNT(*) INTO W_CK FROM INVOICE WHERE INV_NUMBER = W_IN;
IF W_CK = 1 THEN
SELECT SUM(LINE_TOTAL) INTO W_SUBT FROM LINE
WHERE
LINE.INV_NUMBER = W_IN;
W_TAX =W_SUBT * 0.08;
UPDATE INVOICE
SET INV_SUBTOTAL = W_SUBT,
INV_TAX = W_TAX,
INV_TOTAL =W_SUBT + W_TAX
WHERE INV_NUMBER = W_IN;
END IF;
END; $$
DELIMTER ;

第 2 行的 ERROR 1064 (42000)：您的 SQL 语法有错误； 检查与您的 MySQL 服务器版本相对应的手册 在 'IN NUMBER) AS W_CHK NUMBER = 0 附近使用的正确语法； W_SUBT 数字 = 0； W_TAX NUMBER = 0； BEGIN SELEC' 在第 1 行

Answer 1

您的语法错误。试试这个：

CREATE PROCEDURE prc_inv_amounts (IN W_IN NUMBER)