在 sql 数据库中搜索列名，然后在重新调整的列中搜索值 [英] Search sql database for a column name, then search for a value within the retuned columns

问题描述

此查询将在数据库中搜索特定列名.我想更进一步，在返回的列中搜索特定值.

This query will search a database for a specific column name. I would like to go one step further and search the returned columns for a specific value.

SELECT t.name AS table_name,
SCHEMA_NAME(schema_id) AS schema_name,
c.name AS column_name,
FROM sys.tables AS t
INNER JOIN sys.columns c ON t.OBJECT_ID = c.OBJECT_ID
WHERE c.name LIKE '%Example%'

有什么想法吗?

非常感谢

推荐答案

不存在用于此类搜索的系统表.而您可以为此目的而尝试

There is not such system table present for this kind of searching. Whereas you can try this for your purpose

DECLARE @ValueToSearch NVARCHAR(500)
DECLARE @SearchColumn NVARCHAR(100)
DECLARE @TableName NVARCHAR(200)
DECLARE @ColumnName NVARCHAR(200)
SET @ValueToSearch ='YOUR VALUE TP SEARCH'
SET @SearchColumn = 'YOUR COLUMN'
DECLARE @getResult CURSOR
SET @getResult = CURSOR FOR
    SELECT t.name AS table_name,c.name AS column_name FROM sys.tables AS t INNER JOIN     sys.columns c ON t.OBJECT_ID = c.OBJECT_ID WHERE c.name = @SearchColumn
    OPEN @getResult
    FETCH NEXT FROM @getResult INTO @TableName,@ColumnName
    WHILE @@FETCH_STATUS = 0
    BEGIN
        SET NOCOUNT ON ;
        DECLARE @RESULT INT; 
        DECLARE @TYPE INT
        DECLARE @QUERY NVARCHAR(1000)
        SET @QUERY = 'select @RESULT=count(*) from ' + ISNULL(@TableName,'') +'     WHERE '+ ISNULL(@ColumnName,'')+'='''+ ISNULL(@ValueToSearch,'') +''''
        EXEC sp_executesql @QUERY,
            N'@result int OUTPUT, @type int OUTPUT',
            @RESULT OUTPUT, 
            @TYPE OUTPUT
        IF(ISNULL(@RESULT,0)>0)
        BEGIN
            SET NOCOUNT ON;
        SELECT ' COLUMN '+ @ColumnName + ' OF TABLE ' +@TableName+ ' HAS     THIS VALUE.'
        END
        FETCH NEXT FROM @getResult INTO @TableName,@ColumnName
    END
CLOSE @getResult
DEALLOCATE @getResult

谢谢

马诺伊

这篇关于在 sql 数据库中搜索列名，然后在重新调整的列中搜索值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！