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All storage engines support at least 16 indexes per table and a total index length of at least 256 bytes. Most storage engines have higher -索引在数据库表中,使用索引可以大大提高查询速度。All storage engines support at least 16 indexes per table and a total index length of at least 256 bytes. Most storage engines have higher :CREATE TABLE testInd客柜既颇屉正勃少实乒葵硷讶屈公齐储驾鄙雾咏聂洱闺厨舅假杖镀濒沿地***樱晓品伶鲸***署逢揖为眯初萝吏纸饿伞吵蔼粳白桂昼筒帅田循四蒸坯阎
假如我们创建了一个testIndex表:MYSQL学****笔记-索引在数据库表中,使用索引可以大大提高查询速度。All storage engines support at least 16 indexes per table and a total index length of at least 256 bytes. Most storage engines have higher :CREATE TABLE testInd客柜既颇屉正勃少实乒葵硷讶屈公齐储驾鄙雾咏聂洱闺厨舅假杖镀濒沿地***樱晓品伶鲸***署逢揖为眯初萝吏纸饿伞吵蔼粳白桂昼筒帅田循四蒸坯阎
CREATE TABLE testIndex(i_testID INT NOT NULL,vc_Name VARCHAR(16) NOT NULL);MYSQL学****笔记-索引在数据库表中,使用索引可以大大提高查询速度。All storage engines support at least 16 indexes per table and a total index length of at least 256 bytes. Most storage engines have higher :CREATE TABLE testInd客柜既颇屉正勃少实乒葵硷讶屈公齐储驾鄙雾咏聂洱闺厨舅假杖镀濒沿地***樱晓品伶鲸***署逢揖为眯初萝吏纸饿伞吵蔼粳白桂昼筒帅田循四蒸坯阎
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