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--====================================================================================================== local set={[1]=2,[2]=3,[3]=5,[4]=7,[5]=11,[6... 阅读全文
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Hash索引与 Btree索引的区别http://database.51cto.com/art/201010/229525.htmCreating Indexes/Sorting on very large tables in Mysqlhttp://li.angshan.blog.163.com/... 阅读全文
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use information_schema;select table_name,concat(round(DATA_LENGTH/1024/1024,2),'MB') as data,concat(round(index_length/1024/1024,2),'MB') as indexweig... 阅读全文