SQL 查询语句性能对比分析

同样查询北京的区县以上行政区划(含区县)共16条数据；

SELECT TOP 1000 [ADCD]

,[ADNM]

,[LGTD]

,[LTTD]

FROM [YY_DB].[dbo].[AD_CD_B]

where ADCD like '%000000000' and ADCD!=110102000000000

最短耗时72ms;

select * from AD_CD_B where ADCD = 110100000000000 or

ADCD =110101000000000 or ADCD =110105000000000 or ADCD =110106000000000

or ADCD =110107000000000 or ADCD =110108000000000 or ADCD =110109000000000 or

ADCD =110111000000000 or ADCD =110112000000000 or ADCD =110113000000000

or ADCD =110114000000000 or ADCD =110115000000000 or ADCD =110116000000000

or ADCD =110117000000000 or ADCD =110228000000000 or ADCD =110229000000000

最短耗时 110ms;

select * from AD_CD_B where ADCD in( 110100000000000,

110101000000000,

110105000000000,

110106000000000,

110107000000000,

110108000000000,

110109000000000,

110111000000000,

110112000000000,

110113000000000,

110114000000000,

110115000000000,

110116000000000,

110117000000000,

110228000000000,

110229000000000)

最短耗时114ms;