108 lines
3.4 KiB
SQL
108 lines
3.4 KiB
SQL
-- 修复BigDecimal字段的null值问题
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-- 将null值替换为0.00，避免JSON序列化异常
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-- ========================================
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-- 1. 修复用户优惠券表的null值
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-- ========================================
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-- 检查当前null值情况
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SELECT
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'shop_user_coupon null值检查' as table_name,
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COUNT(*) as total_records,
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COUNT(CASE WHEN reduce_price IS NULL THEN 1 END) as null_reduce_price,
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COUNT(CASE WHEN min_price IS NULL THEN 1 END) as null_min_price
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FROM shop_user_coupon;
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-- 修复reduce_price字段的null值
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UPDATE shop_user_coupon
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SET reduce_price = 0.00
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WHERE reduce_price IS NULL;
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-- 修复min_price字段的null值
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UPDATE shop_user_coupon
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SET min_price = 0.00
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WHERE min_price IS NULL;
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-- ========================================
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-- 2. 修复优惠券模板表的null值
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-- ========================================
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-- 检查当前null值情况
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SELECT
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'shop_coupon null值检查' as table_name,
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COUNT(*) as total_records,
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COUNT(CASE WHEN reduce_price IS NULL THEN 1 END) as null_reduce_price,
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COUNT(CASE WHEN min_price IS NULL THEN 1 END) as null_min_price
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FROM shop_coupon;
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-- 修复reduce_price字段的null值
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UPDATE shop_coupon
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SET reduce_price = 0.00
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WHERE reduce_price IS NULL;
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-- 修复min_price字段的null值
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UPDATE shop_coupon
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SET min_price = 0.00
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WHERE min_price IS NULL;
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-- ========================================
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-- 3. 设置字段默认值（可选）
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-- ========================================
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-- 为用户优惠券表字段设置默认值
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ALTER TABLE shop_user_coupon
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MODIFY COLUMN reduce_price DECIMAL(10,2) DEFAULT 0.00 COMMENT '满减券-减免金额';
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ALTER TABLE shop_user_coupon
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MODIFY COLUMN min_price DECIMAL(10,2) DEFAULT 0.00 COMMENT '最低消费金额';
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-- 为优惠券模板表字段设置默认值
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ALTER TABLE shop_coupon
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MODIFY COLUMN reduce_price DECIMAL(10,2) DEFAULT 0.00 COMMENT '满减券-减免金额';
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ALTER TABLE shop_coupon
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MODIFY COLUMN min_price DECIMAL(10,2) DEFAULT 0.00 COMMENT '最低消费金额';
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-- ========================================
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-- 4. 验证修复结果
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-- ========================================
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-- 检查修复后的情况
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SELECT
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'shop_user_coupon 修复后检查' as table_name,
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COUNT(*) as total_records,
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COUNT(CASE WHEN reduce_price IS NULL THEN 1 END) as null_reduce_price,
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COUNT(CASE WHEN min_price IS NULL THEN 1 END) as null_min_price,
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MIN(reduce_price) as min_reduce_price,
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MIN(min_price) as min_min_price
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FROM shop_user_coupon;
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SELECT
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'shop_coupon 修复后检查' as table_name,
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COUNT(*) as total_records,
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COUNT(CASE WHEN reduce_price IS NULL THEN 1 END) as null_reduce_price,
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COUNT(CASE WHEN min_price IS NULL THEN 1 END) as null_min_price,
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MIN(reduce_price) as min_reduce_price,
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MIN(min_price) as min_min_price
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FROM shop_coupon;
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-- ========================================
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-- 5. 检查其他可能的BigDecimal字段
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-- ========================================
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-- 检查订单相关表的BigDecimal字段
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SELECT
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'shop_order BigDecimal字段检查' as check_type,
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COUNT(*) as total_records,
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COUNT(CASE WHEN order_price IS NULL THEN 1 END) as null_order_price,
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COUNT(CASE WHEN pay_price IS NULL THEN 1 END) as null_pay_price
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FROM shop_order;
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-- 如果发现null值，可以执行以下修复
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/*
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UPDATE shop_order SET order_price = 0.00 WHERE order_price IS NULL;
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UPDATE shop_order SET pay_price = 0.00 WHERE pay_price IS NULL;
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*/
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SELECT 'BigDecimal null值修复完成！' as result;
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