Find table that DON'T have a column with specific name in Db2 database

Databases often have standard columns. Examples of such standard columns can be id, modified_date, created_by or row_version.

Query below finds all tables that do not have a 'MODIFIEDDATE' column.

Query

select t.tabschema as schema_name,
       t.tabname as table_name
from syscat.tables t
left outer join 
    (select tabschema,
           tabname 
    from syscat.columns 
    where  colname ='MODIFIEDDATE'
    )c on c.tabschema = t.tabschema and c.tabname = t.tabname
where t.type='T'
and c.tabname is  null
order by schema_name,
         table_name

Columns

  • schema_name - name of schema of found table
  • table_name - name of found table

Rows

  • One row represents a table
  • Scope of rows: all found tables
  • Ordered by schema name

Sample results

These tables do not have a 'MODIFIEDDATE' column.

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