How SQL SERVER queries the tables and fields of a particular value in the entire database

SET NOCOUNT on;
DECLARE @sql VARCHAR (1024)
DECLARE @table VARCHAR (64)
DECLARE @column VARCHAR (64)
DECLARE @value VARCHAR (64)
Set @value = ' 14799059407 '
CREATE TABLE #t (
TableName VARCHAR (64),
ColumnName VARCHAR (64)
)

DECLARE TABLES CURSOR
For

SELECT O.name, C.name
From syscolumns C
INNER JOIN sysobjects o on c.id = o.id
WHERE o.type = ' U ' and C.xtype in (167, 175, 231, 239)
ORDER by O.name, C.name

OPEN TABLES

FETCH NEXT from TABLES
Into @table, @column

While @ @FETCH_STATUS = 0
BEGIN
SET @sql = ' IF EXISTS (SELECT NULL from [' + @table + '] '
SET @sql = @sql + ' WHERE RTRIM (LTRIM ([' + @column + ')]) ' like '% ' + @value + '% ') '
SET @sql = @sql + ' INSERT into #t VALUES (' + @table + ', ' "
SET @sql = @sql + @column + ') '

EXEC (@sql)

FETCH NEXT from TABLES
Into @table, @column
END

CLOSE TABLES
Deallocate TABLES

SELECT *
From #t

DROP TABLE #t

How SQL SERVER queries the tables and fields of a particular value in the entire database