SQL server query to get the list of columns in a table

SQL server query to get the list of columns in a table along with data types, not null, and primary key constraints

I need to write a query on SQL server to get the list of columns in a particular table, its associated data types and their length and if they are not null. I have managed to do this much. But now i also need to get in the same table against a column - TRUE if it is a primary key. How do i do this ?

This is how the output should be:

Columns_name----Data type----Length----isnull----Pk

SELECT
    c.name 'Column Name',
    t.Name 'Data type',
    c.max_length 'Max Length',
    c.precision ,
    c.scale ,
    c.is_nullable,
    ISNULL(i.is_primary_key, 0) 'Primary Key'
FROM    
    sys.columns c
INNER JOIN
    sys.types t ON c.system_type_id = t.system_type_id
LEFT OUTER JOIN
    sys.index_columns ic ON ic.object_id = c.object_id AND ic.column_id = c.column_id
LEFT OUTER JOIN
    sys.indexes i ON ic.object_id = i.object_id AND ic.index_id = i.index_id
WHERE
    c.object_id = OBJECT_ID('YourTableName')

How about this: SELECT     c.name 'Column Name',     t.Name 'Data type',     c.max_length 'Max Length',     c.precision ,     c.scale ,     c.is_nullable,     ISNULL(i.is_primary_key, 0) 'Primary Key' FROM         sys.columns c INNER JOIN     sys.types t ON c.system_type_id = t.system_type_id LEFT OUTER JOIN     sys.index_columns ic ON ic.object_id = c.object_id AND ic.column_id = c.column_id LEFT OUTER JOIN     sys.indexes i ON ic.object_id = i.object_id AND ic.index_id = i.index_id WHERE     c.object_id = OBJECT_ID('YourTableName') Just replace YourTableName with your actual table name - works for SQL Server 2005 and up.

you can do this to get the PK constraint

Select C.COLUMN_NAME, C.DATA_TYPE, C.CHARACTER_MAXIMUM_LENGTH, C.NUMERIC_PRECISION, C.IS_NULLABLE, TC.CONSTRAINT_NAME
From INFORMATION_SCHEMA.COLUMNS As C
    Left Join INFORMATION_SCHEMA.TABLE_CONSTRAINTS As TC
      On TC.TABLE_SCHEMA = C.TABLE_SCHEMA
          And TC.TABLE_NAME = C.TABLE_NAME
          And TC.CONSTRAINT_TYPE = 'PRIMARY KEY'
Where C.TABLE_NAME = 'Table'

I must have missed that you want a flag to determine if the given column was part of the PK instead of the name of the PK constraint. For that you would use:

Select C.COLUMN_NAME, C.DATA_TYPE, C.CHARACTER_MAXIMUM_LENGTH
    , C.NUMERIC_PRECISION, C.NUMERIC_SCALE
    , C.IS_NULLABLE
    , Case When Z.CONSTRAINT_NAME Is Null Then 0 Else 1 End As IsPartOfPrimaryKey
From INFORMATION_SCHEMA.COLUMNS As C
    Outer Apply (
                Select CCU.CONSTRAINT_NAME
                From INFORMATION_SCHEMA.TABLE_CONSTRAINTS As TC
                    Join INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE As CCU
                        On CCU.CONSTRAINT_NAME = TC.CONSTRAINT_NAME
                Where TC.TABLE_SCHEMA = C.TABLE_SCHEMA
                    And TC.TABLE_NAME = C.TABLE_NAME
                    And TC.CONSTRAINT_TYPE = 'PRIMARY KEY'
                    And CCU.COLUMN_NAME = C.COLUMN_NAME
                ) As Z
Where C.TABLE_NAME = 'Table'

select DATA_TYPE, CHARACTER_MAXIMUM_LENGTH,
       NUMERIC_PRECISION, DATETIME_PRECISION,
       IS_NULLABLE
from INFORMATION_SCHEMA.COLUMNS
where TABLE_NAME='TableName'

to get all the metadata you require except for the Pk information.

The stored procedure sp_columns returns detailed table information.

exec sp_columns MyTable

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