how to count number of columns in a table in oracle
-- Oracle
SELECT count(*) FROM ALL_TAB_COLUMNS WHERE OWNER='owner_name'
AND TABLE_NAME = 'table_name';
-- SQL Server / MySQL
SELECT count(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = 'schema_name'
AND TABLE_NAME = 'table_name';Copyright © 2021 Codeinu
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