troubleshooting Question

comparing 2 similar table's data types for any differences

Avatar of anushahanna
anushahannaFlag for United States of America asked on
Microsoft SQL Server
4 Comments1 Solution268 ViewsLast Modified:
is the following method efficient/correct in making sure to see if any data type changes have occured, since a table was replicated (basically same schema with diff name) in the same database.

example:
tblTrackerSanctionJobs, and then another table tblTrackerSanctionJobs_history was created with same schema. There are 100+ columns - just want to check if all the datatypes align and are the same, and there are not extra and less columns (basically any changes to schema)..

the below uses the 2005 command 'except'

thanks.
(SELECT     TABLE_CATALOG, TABLE_SCHEMA, COLUMN_NAME, ORDINAL_POSITION, COLUMN_DEFAULT, IS_NULLABLE, DATA_TYPE, 
                      CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH, NUMERIC_PRECISION, NUMERIC_PRECISION_RADIX, NUMERIC_SCALE, 
                      DATETIME_PRECISION, CHARACTER_SET_CATALOG, CHARACTER_SET_SCHEMA, CHARACTER_SET_NAME, COLLATION_CATALOG, 
                      COLLATION_SCHEMA, COLLATION_NAME, DOMAIN_CATALOG, DOMAIN_SCHEMA, DOMAIN_NAME
FROM         INFORMATION_SCHEMA.COLUMNS
WHERE     (TABLE_NAME = 'tblTrackerSanctionJobs')) 

EXCEPT

(SELECT     TABLE_CATALOG, TABLE_SCHEMA, COLUMN_NAME, ORDINAL_POSITION, COLUMN_DEFAULT, IS_NULLABLE, DATA_TYPE, 
                      CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH, NUMERIC_PRECISION, NUMERIC_PRECISION_RADIX, NUMERIC_SCALE, 
                      DATETIME_PRECISION, CHARACTER_SET_CATALOG, CHARACTER_SET_SCHEMA, CHARACTER_SET_NAME, COLLATION_CATALOG, 
                      COLLATION_SCHEMA, COLLATION_NAME, DOMAIN_CATALOG, DOMAIN_SCHEMA, DOMAIN_NAME
FROM         INFORMATION_SCHEMA.COLUMNS
WHERE     (TABLE_NAME = 'tblTrackerSanctionJobs_history'))
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