How to cast a column to Varchar if the data type is XML in the below sql query?

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SQL

select @ColumnList= @ColumnList+ ',' +
   column_name 
    from information_schema.columns  where
     table_name = @TableName  and DATA_TYPE not in ('timestamp')

Posted 15-Jul-15 3:49am

Kandiya

Updated 15-Jul-15 3:50am

v2

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Wendelius · Answer 1 · 2015-07-15T04:10:00

I take it you want to make the cast inside the string being built. If so, perhaps something like

SQL

select @ColumnList= @ColumnList+ ',' +
case 
   when data_type = 'xml' then 'cast(' + column_name + ' as varchar(max)'
   else column_name
end
from information_schema.columns  where
table_name = @TableName  and DATA_TYPE not in ('timestamp')