标签:div 查询优化 rom 正则 HERE where sele select like
查询速度 从 低到高:
select * from db where ‘keyword‘ like ‘%金融%‘ or ‘keyword‘ like ‘%企业%‘ .....
select * from db where keyword REGEXP ‘金融|企业‘ (正则查询)
select * from db where instr(keyword, ‘金融‘) > 0 or instr(keyword,‘企业‘) > 0 (查询速度比like 快2倍)
标签:div 查询优化 rom 正则 HERE where sele select like
原文地址:https://www.cnblogs.com/pythonSF/p/9042482.html