Large objects in SQL Server are columns with following data types: varchar(max), nvarchar(max), text, ntext, image, varbinary(max), and xml.

Query below lists all tables that cointain columns with LOB data types.

Query

select t.table_schema as schema_name,
    t.table_name, 
    count(*) as columns
from information_schema.columns c
    inner join INFORMATION_SCHEMA.tables t
        on c.TABLE_SCHEMA = t.TABLE_SCHEMA
        and c.TABLE_NAME = t.TABLE_NAME
where t.TABLE_TYPE = 'BASE TABLE' 
and ((c.data_type in ('VARCHAR', 'NVARCHAR') and c.character_maximum_length = -1)
or data_type in ('TEXT', 'NTEXT', 'IMAGE', 'VARBINARY', 'XML', 'FILESTREAM'))
group by t.table_schema, 
    t.table_name
order by t.table_schema, 
    t.table_name

Columns

• schema_name - schema name
• table_name - table name
• columns - number of LOB columns in a table

Rows

• One row represents one table
• Scope of rows: all tables containing columns with LOB data types in current database
• Ordered by schema name, table name

Sample results

List of tables with LOB columns in AdventureWorks database: