18 lines
668 B
MySQL
18 lines
668 B
MySQL
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set @front_requirement_keyword_exists := (
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select count(1)
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from information_schema.columns
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where table_schema = database()
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and table_name = 'front_project'
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and column_name = 'requirement_keyword'
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);
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set @front_requirement_keyword_sql := if(
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@front_requirement_keyword_exists = 0,
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'alter table front_project add column requirement_keyword varchar(1000) default '''' comment ''需求关键词'' after project_desc',
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'select ''front_project.requirement_keyword already exists'''
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);
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prepare front_requirement_keyword_stmt from @front_requirement_keyword_sql;
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execute front_requirement_keyword_stmt;
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deallocate prepare front_requirement_keyword_stmt;
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