36 lines
1.2 KiB
SQL
36 lines
1.2 KiB
SQL
-- ============================================================
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-- erp_mp_mbom 表增加下发时间字段
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-- 下发时间: issue_date，用于记录物料清单下发车间的时间
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-- 生成日期: 2026-02-13
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-- ============================================================
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SET NAMES utf8mb4;
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DROP PROCEDURE IF EXISTS `proc_add_column_if_not_exists`;
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DELIMITER //
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CREATE PROCEDURE `proc_add_column_if_not_exists`(
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IN p_table_name VARCHAR(64),
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IN p_column_name VARCHAR(64),
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IN p_column_definition VARCHAR(500)
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)
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BEGIN
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DECLARE v_count INT DEFAULT 0;
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SELECT COUNT(*) INTO v_count
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FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = p_table_name
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AND COLUMN_NAME = p_column_name;
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IF v_count = 0 THEN
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SET @sql = CONCAT('ALTER TABLE `', p_table_name, '` ADD COLUMN `', p_column_name, '` ', p_column_definition);
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PREPARE stmt FROM @sql;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;
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END IF;
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END //
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DELIMITER ;
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CALL proc_add_column_if_not_exists('erp_mp_mbom', 'issue_date', "datetime DEFAULT NULL COMMENT '下发时间'");
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DROP PROCEDURE IF EXISTS `proc_add_column_if_not_exists`;
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