>You cannot use concat() for a table name.
>
>

>If SQLExec(m.con1, textmerge("SELECT TABLE_NAME"+;
> " FROM [<<m.db1>>.INFORMATION_SCHEMA.Tables]"+;
> " WHERE TABLE_TYPE = 'BASE TABLE'"),'tablist') >0
>

Thanks Doctor Cetin Basoz for helping but
your codes displays this error message

Connectivity error: [Microsoft][ODBC SQL Server Driver][SQL Server]Invalid object name 'at20.INFORMATION_SCHEMA.Tables'.

but when I run the following code in sqlserver management query then it work fine as shown in attached image

SELECT TABLE_NAME FROM at20.INFORMATION_SCHEMA.Tables WHERE TABLE_TYPE = 'BASE TABLE'

Please