sql count column

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Melina
13 May 2019
1-- Oracle
2SELECT count(*) FROM ALL_TAB_COLUMNS WHERE OWNER='owner_name' 
3	AND TABLE_NAME = 'table_name';
4-- SQL Server / MySQL
5SELECT count(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = 'schema_name' 
6	AND TABLE_NAME = 'table_name';
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