全文搜索最慢 EXPLAIN select * from city; 范围搜索 EXPLAIN select * from city where ID>5 and ID<20; 主键查询 EXPLAIN select * from citywhere ID5; 索引查询
EXPLAIN select * from citywhere CountryCodeNLD; 普通查询
EXPLAIN select * from city where Nam…
1、下载
下载网页:SQL Server 下載 | Microsoft
2022版下载地址:https://go.microsoft.com/fwlink/p/?linkid2215158&clcid0x404&culturezh-tw&countrytw
下载结果:SQL2022-SSEI-Dev.exe
打开选第三个,下载介质&…