How do I show column names in SQL?

The following query will give the table’s column names:

  1. SELECT column_name FROM INFORMATION_SCHEMA. COLUMNS.
  2. WHERE TABLE_NAME = ‘News’

How do you use reserved words as column names in SQL?

Using Keywords in Tables or Columns Generally, SQL developers advise against using reserved words. However, if you want (or need) to use a reserved word as a table or column name, you can place the respective identifier in special quotation marks, so-called backticks (` `), in the SQL statements.

Which is a valid column name?

Column names can contain any valid characters (for example, spaces). If column names contain any characters except letters, numbers, and underscores, the name must be delimited by enclosing it in back quotes (`).

How do you check if a column exists in SQL?

Checking Existence of the Column: For checking the existence we need to use the COL_LENGTH() function. COL_LENGTH() function returns the defined length of a column in bytes. This function can be used with the IF ELSE condition to check if the column exists or not.

How do I print only column names in SQL?

USE db_name; DESCRIBE table_name; it’ll give you column names with the type.

Can we use SQL keywords as column name?

In SQL, certain words are reserved. These are called Keywords or Reserved Words. These words cannot be used as identifiers i.e. as column names in SQL.

Can I use SQL keyword as column name?

In MySQL, alternatively to using back quotes (`), you can use the UI to alter column names. Right click the table > Alter table > Edit the column name that contains sql keyword > Commit.

Can SQL column names have special characters?

SQL Naming and Statement Rules. Was this helpful? The rules for naming database objects (such as tables, columns, views, and database procedures) are as follows: Names can contain only alphanumeric characters and must begin with an alphabetic character or an underscore (_).

Can SQL column names have underscore?

There are no direct technical issue with using an underscore in the name. In fact, I do it quite often and find it helpful. Ruby even auto generate underscores in column names and SQL Servers own system objects use underscores too.

How can I check if a column is present in database?

Another method to find if the column exists in a table is by using COL_LENGTH system function. This function returns the length of the column if it exists in the table. If not, it will return NULL.