成人AV在线无码|婷婷五月激情色,|伊人加勒比二三四区|国产一区激情都市|亚洲AV无码电影|日av韩av无码|天堂在线亚洲Av|无码一区二区影院|成人无码毛片AV|超碰在线看中文字幕

oracle添加字段sql sql如何查詢包含某一字段的值?

sql如何查詢包含某一字段的值?不同的數(shù)據(jù)庫,SQL語句略有區(qū)別:1.如果是Access數(shù)據(jù)庫,SQL語句應(yīng)為:SELECT * FROM TableName WHERE A LIKE "*2011*

sql如何查詢包含某一字段的值?

不同的數(shù)據(jù)庫,SQL語句略有區(qū)別:1.如果是Access數(shù)據(jù)庫,SQL語句應(yīng)為:SELECT * FROM TableName WHERE A LIKE "*2011*"2.如果是Oracle數(shù)據(jù)庫,SQL語句應(yīng)為:SELECT * FROM TableName WHERE A LIKE " 11%"3.如果是SQL SERVER數(shù)據(jù)庫,SQL語句應(yīng)為:SELECT * FROM TableName WHERE A LIKE " 11%"

sql如何查詢包含某一字段的值?

最簡(jiǎn)單的子查詢:select * from table where date = (select max(date) from table) 或者用輪子哥講的join自己: select * from table t1 left join (select max(date) as date from table) t2 on t1.date=t2.date where t2.date is not null

用SQL怎樣查詢到包含有某個(gè)字段的所有表名?

select a.name 表名,b.name 列名 from sysobjects a,syscolumns b where a.id = b.id and b.name = "表名"and a.type="U"

還有一種:

SELECT b.name as TableName,a.name as columnname

From syscolumns a INNER JOIN sysobjects b

ON a.id=b.id

AND b.type=’U’

AND a.name=’你的字段名字’