How can I get column names from a table in SQL Server?

Question

I want to query the name of all columns of a table. I found how to do this in:

• Oracle
• MySQL
• PostgreSQL

But I also need to know:

Answer 1

SELECT c.Name 
FROM sys.columns c
JOIN sys.objects o ON o.object_id = c.object_id
WHERE o.object_id = OBJECT_ID('TABLE_NAME')
ORDER BY c.Name

Answer 2

SELECT COLUMN_NAME
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'name_of_your_table'

Answer 3

SELECT name
FROM sys.columns
WHERE object_id = OBJECT_ID('TABLE_NAME')

TABLE_NAME is your table

Answer 4

By using this query you get the answer:

select Column_name 
from Information_schema.columns 
where Table_name like 'table name'

Answer 5

Summarizing the Answers

I can see many different answers and ways to do this but there is the rub in this and that is the objective.

Yes, the objective. If you want to only know the column names you can use

SELECT * FROM my_table WHERE 1=0
or
SELECT TOP 0 * FROM my_table

But if you want to use those columns somewhere or simply say manipulate them then the quick queries above are not going to be of any use. You need to use

SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = N'Customers'

one more way to know some specific columns where we are in need of some similar columns

SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE COLUMN_NAME like N'%[ColumnName]%' and TABLE_NAME = N'[TableName]'

Answer 6

select *
from INFORMATION_SCHEMA.COLUMNS
where TABLE_NAME='tableName'

This is better than getting from sys.columns because it shows DATA_TYPE directly.