liuminghui
50 lines
1.7 KiB
SQL
50 lines
1.7 KiB
SQL
-- 应付账单四段合计。total_amount 为账单合计，等于 A、B、C、D 四段之和。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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EXISTS (SELECT 1 FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pay_bill' AND COLUMN_NAME = 'amount_a'),
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'SELECT 1',
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'ALTER TABLE pay_bill ADD COLUMN amount_a decimal(18,4) NOT NULL DEFAULT 0.0000 COMMENT ''A段合计'' AFTER order_count'
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)
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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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EXISTS (SELECT 1 FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pay_bill' AND COLUMN_NAME = 'amount_b'),
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'SELECT 1',
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'ALTER TABLE pay_bill ADD COLUMN amount_b decimal(18,4) NOT NULL DEFAULT 0.0000 COMMENT ''B段合计'' AFTER amount_a'
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)
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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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EXISTS (SELECT 1 FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pay_bill' AND COLUMN_NAME = 'amount_c'),
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'SELECT 1',
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'ALTER TABLE pay_bill ADD COLUMN amount_c decimal(18,4) NOT NULL DEFAULT 0.0000 COMMENT ''C段合计'' AFTER amount_b'
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)
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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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EXISTS (SELECT 1 FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'pay_bill' AND COLUMN_NAME = 'amount_d'),
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'SELECT 1',
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'ALTER TABLE pay_bill ADD COLUMN amount_d decimal(18,4) NOT NULL DEFAULT 0.0000 COMMENT ''D段合计'' AFTER amount_c'
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)
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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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ALTER TABLE pay_bill
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MODIFY COLUMN total_amount decimal(18,4) NOT NULL DEFAULT 0.0000 COMMENT '账单合计';
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