12 lines
576 B
SQL
12 lines
576 B
SQL
-- 方法1：使用 IF NOT EXISTS 语法（推荐）
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ALTER TABLE cli_surgery ADD COLUMN IF NOT EXISTS apply_doctor_name VARCHAR(100);
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COMMENT ON COLUMN cli_surgery.apply_doctor_name IS '申请医生姓名';
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ALTER TABLE cli_surgery ADD COLUMN IF NOT EXISTS apply_dept_name VARCHAR(100);
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COMMENT ON COLUMN cli_surgery.apply_dept_name IS '申请科室名称';
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-- 验证字段是否添加成功
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SELECT column_name, data_type, character_maximum_length
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FROM information_schema.columns
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WHERE table_name = 'cli_surgery'
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AND column_name IN ('apply_doctor_name', 'apply_dept_name'); |