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表空间与表有什么本质区别
更新时间: 2020-10-03 00:00:00  

表空间是指其物理存储的地方;表是指他的表现形式;物理存储的全是实际数据,是不能直接拿过来用的,可以通过表名,字段名这种接口来读取数据,SQL SERVER会到表空间去找到实际的数据,再按照具体的命令显示给出需要的数据。

关键词: 空间 什么 本质 区别

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select * from tbl_Articles WHERE ArticleID=239451 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=239451 LIMIT 0,1
select * from tbl_Articles_sphinx where id=239451 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1075883,1071243,2849009,1061556,1128969,1071701,1055866,1059368,1069505,1102036,1043111,1004919,1071905,1074216,1063929,1075526,1125164,983947,1049174,1044899,1062626,1059915,1063735,988780,1055039,1067860,1061744,1061830,2805254,1027455) ORDER BY field (ArticleID,1075883,1071243,2849009,1061556,1128969,1071701,1055866,1059368,1069505,1102036,1043111,1004919,1071905,1074216,1063929,1075526,1125164,983947,1049174,1044899,1062626,1059915,1063735,988780,1055039,1067860,1061744,1061830,2805254,1027455)