liuminghui
41 lines
1.8 KiB
SQL
41 lines
1.8 KiB
SQL
-- 客户主表增加合同开始时间、合同结束时间
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-- 供应商只增加合同结束时间；合同开始时间与原有合作开始日期重复，已有列则删除
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-- 客户列已存在时不要重复执行前面的 ALTER
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SET NAMES utf8mb4;
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-- 先去掉供应商上后加的合同开始时间，避免后续语句失败时这一列还留着
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SET @has_supplier_contract_start := (
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SELECT COUNT(*) FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'sup_supplier'
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AND COLUMN_NAME = 'contract_start_date'
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);
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SET @drop_supplier_contract_start := IF(
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@has_supplier_contract_start > 0,
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'ALTER TABLE sup_supplier DROP COLUMN contract_start_date',
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'SELECT 1'
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);
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PREPARE drop_supplier_contract_start_stmt FROM @drop_supplier_contract_start;
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EXECUTE drop_supplier_contract_start_stmt;
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DEALLOCATE PREPARE drop_supplier_contract_start_stmt;
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ALTER TABLE ctr_customer
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ADD COLUMN contract_start_date date DEFAULT NULL COMMENT '合同开始时间' AFTER credit_ed,
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ADD COLUMN contract_end_date date DEFAULT NULL COMMENT '合同结束时间' AFTER contract_start_date;
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-- 供应商原有合作开始日期，只补合同结束时间（已有则跳过）
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SET @has_supplier_contract_end := (
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SELECT COUNT(*) FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = DATABASE()
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AND TABLE_NAME = 'sup_supplier'
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AND COLUMN_NAME = 'contract_end_date'
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);
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SET @add_supplier_contract_end := IF(
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@has_supplier_contract_end = 0,
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'ALTER TABLE sup_supplier ADD COLUMN contract_end_date date DEFAULT NULL COMMENT ''合同结束时间'' AFTER cooperation_start_date',
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'SELECT 1'
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);
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PREPARE add_supplier_contract_end_stmt FROM @add_supplier_contract_end;
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EXECUTE add_supplier_contract_end_stmt;
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DEALLOCATE PREPARE add_supplier_contract_end_stmt;
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