SQL 服务器 SELECT 其中任何列包含 'x'

Question

使用 SQL Server 2008，假设我有一个名为 testing 的 table，它有 80 列，我想找到一个名为 foo 的值。

我能做到：

SELECT * 
FROM testing 
WHERE COLNAME = 'foo'

是否可以查询所有 80 列和 return 80 列中任何一列包含 foo 的所有结果？

提前致谢。

Answer 1

您可以使用 in:

SELECT *
FROM testing 
WHERE 'foo' in (col1, col2, col3, . . . );

Answer 2

第一种方法（已测试） 首先获取以逗号分隔的字符串变量中的列列表，然后您可以使用 IN

使用该变量搜索 'foo'

检查下面的存储过程首先获取列然后搜索字符串：

DECLARE @TABLE_NAME VARCHAR(128)
DECLARE @SCHEMA_NAME VARCHAR(128)

-----------------------------------------------------------------------

-- Set up the name of the table here :
SET @TABLE_NAME = 'testing'
-- Set up the name of the schema here, or just leave set to 'dbo' :
SET @SCHEMA_NAME = 'dbo'

-----------------------------------------------------------------------

DECLARE @vvc_ColumnName VARCHAR(128)
DECLARE @vvc_ColumnList VARCHAR(MAX)

IF @SCHEMA_NAME =''
  BEGIN
  PRINT 'Error : No schema defined!'
  RETURN
  END

IF NOT EXISTS (SELECT * FROM sys.tables T JOIN sys.schemas S
      ON T.schema_id=S.schema_id
      WHERE T.Name=@TABLE_NAME AND S.name=@SCHEMA_NAME)
  BEGIN
  PRINT 'Error : The table '''+@TABLE_NAME+''' in schema '''+
      @SCHEMA_NAME+''' does not exist in this database!' 
  RETURN
 END

DECLARE TableCursor CURSOR FAST_FORWARD FOR
SELECT   CASE WHEN PATINDEX('% %',C.name) > 0 
     THEN '['+ C.name +']' 
     ELSE C.name 
     END
FROM     sys.columns C
JOIN     sys.tables T
ON       C.object_id  = T.object_id
JOIN     sys.schemas S
ON       S.schema_id  = T.schema_id
WHERE    T.name    = @TABLE_NAME
AND      S.name    = @SCHEMA_NAME
ORDER BY column_id


SET @vvc_ColumnList=''

OPEN TableCursor
FETCH NEXT FROM TableCursor INTO @vvc_ColumnName

WHILE @@FETCH_STATUS=0
  BEGIN
   SET @vvc_ColumnList = @vvc_ColumnList + @vvc_ColumnName

    -- get the details of the next column
   FETCH NEXT FROM TableCursor INTO @vvc_ColumnName

  -- add a comma if we are not at the end of the row
   IF @@FETCH_STATUS=0
    SET @vvc_ColumnList = @vvc_ColumnList + ','
   END

 CLOSE TableCursor
 DEALLOCATE TableCursor

-- Now search for `foo`


SELECT *
FROM testing 
WHERE 'foo' in (@vvc_ColumnList );

第二种方法 在 sql 服务器中，您可以获得 table 的对象 ID，然后使用该对象 ID 可以获取列。在这种情况下，它将如下所示：

第一步：首先获取table

的Object Id

select * from sys.tables order by name

第 2 步： 现在获取 table 的列并在其中搜索：

 select * from testing where 'foo' in (select name from sys.columns  where  object_id =1977058079)

注意：object_id 是您在第一步中获取的相关内容 table

Answer 3

您可以使用 in 并且可以动态获取列名并将它们传递给 IN 子句，方法是制作 sql 字符串并使用 execute sp_executesql.

执行它

declare @sql nvarchar(2100)
declare @cols nvarchar(2000)
declare @toSearch nvarchar(200)
declare @tableName nvarchar(200)
set @tableName = 'tbltemp'
set @toSearch = '5' 
set @cols =(
 SELECT LEFT(column_name, LEN(column_name) - 1)
FROM (
    SELECT column_name + ', '
    FROM INFORMATION_SCHEMA.COLUMNS where table_name = @tableName
    FOR XML PATH ('')
  ) c (column_name )
)
set @sql = 'select * from tbltemp where '''+ @toSearch + '''  in (' + @cols + ')';  
execute sp_executesql @sql

Answer 4

我从那里得到了这个想法，但让它真正起作用了。只需在此处更改 MyTableName：

SELECT STUFF((
    SELECT ', ' + c.name 
    FROM sys.columns  c
    JOIN sys.types AS t ON c.user_type_id=t.user_type_id
    WHERE t.name != 'int'  AND t.name != 'bit' AND t.name !='date' AND t.name !='datetime'
        AND object_id =(SELECT object_id FROM sys.tables WHERE name='MyTableName')
    FOR XML PATH('')),1,2,'')

您可以根据需要对其进行调整，并从 where 列中添加或删除条件（'t.name != 'int' AND t.name != 'bit' 等. 部分），例如添加 't.name != 'uniqueidentifier'' 以避免出现 Conversion failed when converting the varchar value 'myvalue' to data type int 类型的错误..

然后将结果复制粘贴到这个查询中（否则它不起作用）：

SELECT * from MyTableName where 'foo' in (COPY PASTE PREVIOUS QUERY RESULT INTO HERE)

Answer 5

我认为这是最好的方法之一

SELECT * FROM sys.columns  a
inner join 
(
SELECT object_id
FROM sys.tables 
where 
type='U'--user table
and name like 'testing' 
) b on a.object_id=b.object_id
WHERE a.name like '%foo%'

Answer 6

--Obtain object_id
SELECT object_id FROM sys.tables WHERE name = <your_table>


--look for desired value in specified columns using below syntax
SELECT * FROM <your_table> WHERE <VALUE_YOU_SEARCH_FOR> in
(SELECT name FROM sys.tables WHERE object_id = <your_table_object_id>
and name like '<if_you_have_multiple_columns_with_same_name_pattern>')

SQL 服务器 SELECT 其中任何列包含 'x'

SQL Server SELECT where any column contains 'x'

sql

sql-server

select

sql-server-2008