SQL Server knows the value, how to check which field in which table

        The title is so straightforward...

        Sometimes we know a value, but we don’t know which field the value is in the table in the library. We can use the following statement to query. For example, we query the field of "Zhang San" in that table:

        

DECLARE @cloumns VARCHAR(40);
DECLARE @tablename VARCHAR(40);
DECLARE @str VARCHAR(40);
DECLARE @counts INT;
DECLARE @sql NVARCHAR(2000);
DECLARE MyCursor CURSOR FOR
SELECT a.name AS Columns,
       b.name AS TableName
FROM syscolumns a,
     sysobjects b,
     systypes c
WHERE a.id = b.id
      AND b.type = 'U'
      AND a.xtype = c.xtype
      AND c.name LIKE '%char%';
SET @str = '张三';
OPEN MyCursor;
FETCH NEXT FROM MyCursor
INTO @cloumns,
     @tablename;
WHILE (@@Fetch_Status = 0)
BEGIN
    SET @sql = N'select @tmp_counts=count(*) from ' + @tablename + N' where ' + @cloumns + N' = ''' + @str + N'''';

    EXECUTE sp_executesql @sql, N'@tmp_counts int out', @counts OUT;
    IF @counts > 0
    BEGIN
        PRINT '表名为:' + @tablename + ',字段名为' + @cloumns;
    END;
    FETCH NEXT FROM MyCursor
    INTO @cloumns,
         @tablename;
END;
CLOSE MyCursor;
DEALLOCATE MyCursor;

         result: