For XML length limitation

I am trying to concatenate results of some string data in a query using XML PATH

See query below.What happens is that the XML concatenated column statement gets truncated.Seems like there is a limitation on maximum length.How do I overcome this.

select SUBSTRING(statement,1,len(statement)-2)+';'
from(
select 
'update '+tab.table_name +' set ' +
(
select 
col.COLUMN_NAME +'=replace('+col.column_name+',''@xx'',''yy'') ,'+CHAR(10) 
from INFORMATION_SCHEMA.COLUMNS as col
where  tab.TABLE_CATALOG=col.TABLE_CATALOG
and tab.TABLE_SCHEMA=col.TABLE_SCHEMA
and tab.TABLE_NAME=col.TAB开发者_如何学CLE_NAME
and col.DATA_TYPE in('VARCHAR','NVARCHAR')
for xml path('') )  as statement
from information_schema.TABLES as tab
) as x
where statement is not null

Assuming you're seeing the truncation in SSMS, change your maximum character settings in SSMS's options:

• Tools > Options > Query Results > SQL Server > Results to Text > Maximum number of characters displayed in each column

  (limit is 8192 characters)
  

• Tools > Options > Query Results > SQL Server > Results to Grid > Maximum Characters Retrieved

  Non XML data limit is 65535 characters
  XML data limit is Unlimited