26 lines
798 B
SQL
26 lines
798 B
SQL
SET @db = DATABASE();
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SET @sql = IF(
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EXISTS(
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SELECT 1 FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = @db AND TABLE_NAME = 'gxmu_declare' AND COLUMN_NAME = 'project_type'
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),
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'SELECT 1',
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'ALTER TABLE gxmu_declare ADD COLUMN project_type VARCHAR(100) NULL COMMENT ''挑战杯项目类型'' AFTER module'
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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 = IF(
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EXISTS(
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SELECT 1 FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = @db AND TABLE_NAME = 'gxmu_declare' AND COLUMN_NAME = 'project_group'
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),
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'SELECT 1',
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'ALTER TABLE gxmu_declare ADD COLUMN project_group VARCHAR(255) NULL COMMENT ''挑战杯项目分组'' AFTER project_type'
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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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