Answers for "how to count column in sql"

SQL
4

sql count column

-- 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';
Posted by: Guest on July-04-2021

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