liuminghui
42 lines
1.3 KiB
SQL
42 lines
1.3 KiB
SQL
-- 偏远附加费按重量区间和邮编命中。已有库可重复执行。
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SET NAMES utf8mb4;
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SET @sql = (
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SELECT IF(
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COUNT(*) = 0,
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'ALTER TABLE pay_surcharge ADD COLUMN weight_min decimal(12,3) DEFAULT NULL COMMENT ''适用重量下限KG，空表示不限'' AFTER calc_param',
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'SELECT 1'
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)
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FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pay_surcharge' AND COLUMN_NAME = 'weight_min'
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);
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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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SET @sql = (
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SELECT IF(
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COUNT(*) = 0,
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'ALTER TABLE pay_surcharge ADD COLUMN weight_max decimal(12,3) DEFAULT NULL COMMENT ''适用重量上限KG，空表示不限'' AFTER weight_min',
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'SELECT 1'
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)
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FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pay_surcharge' AND COLUMN_NAME = 'weight_max'
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);
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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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SET @sql = (
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SELECT IF(
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COUNT(*) = 0,
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'ALTER TABLE pay_surcharge ADD COLUMN postcode_param varchar(1000) DEFAULT NULL COMMENT ''偏远邮编规则，如07,35或IV,KA27-28'' AFTER weight_max',
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'SELECT 1'
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)
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FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pay_surcharge' AND COLUMN_NAME = 'postcode_param'
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);
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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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