How to insert only one column data into a table from another table in SQL

Question

I've two table languages and category .

  Languages                Category
+-----------+           +---------+------+
|  Language |           |   Name  | Year |
+-----------+           +---------+------+
|  English  |           | English | 2018 |
|  German   |           | German  | 2018 |
|  French   |           | French  | 2018 |
+-----------+           +---------+------+

Now, Problem is i've query like

INSERT INTO categories ( name ) select language from languages ;

But, i want to add those years(always same year) too at the same time of Language insertion into category table which is table 2 .

Answer 1

You may just insert a literal value for the year:

INSERT INTO categories (name, year)
SELECT language, 2018    -- or maybe use YEAR(NOW()) in place of 2018
FROM languages;

Literals can be specified in a select clause just as any column name may be specified.

Answer 2

seems you need year(curdate())

INSERT INTO categories (name, year) 
select language, year(curdate())
from languages ;