Oracle drop column

ALTER TABLE my_table DROP COLUMN my_col;
-- To check if column exists before renaming it:
DECLARE
    l_cnt INTEGER;
BEGIN
    SELECT count(*) INTO l_cnt
    FROM dba_tab_columns		-- or all_tab_columns (depending on grants)
    WHERE owner = 'my_schema' AND table_name = 'my_table' 
    	AND column_name = 'my_col';
    IF (l_cnt = 1) THEN
        EXECUTE IMMEDIATE 'ALTER TABLE my_schema.my_table DROP COLUMN my_col';
    END IF;
END;

Oracle alter table delete column

alter table table_name drop column column_name;
alter table table_name drop (column_name1, column_name2);

Source: oracle-base.com

Similar codes

0 vote218 views1 answer
MySQL - How to find word with the most similar beginning
SQL
0 vote234 views1 answer
C# get sql min date
SQL
3 votes234 views2 answers
Mysql update row
SQL
1 vote220 views1 answer
Table information in sql server
SQL
3 votes223 views1 answer
Pl sql escape &
SQL
0 vote222 views1 answer
Sql delete caracter list
SQL
-1 vote227 views5 answers
Convert sql to linq query online
SQL
0 vote215 views1 answer
Safe mysql
SQL
0 vote225 views1 answer
Sql remove last 2 digit
SQL
0 vote234 views1 answer
How to delete python anywhere mysql database
SQL