sql get primary key of table code example

Example 1: get primary key of table

SELECT a.COLUMN_NAME
FROM all_cons_columns a INNER JOIN all_constraints c 
     ON a.constraint_name = c.constraint_name 
WHERE c.table_name = 'TBL'
  AND c.constraint_type = 'P';

Example 2: MySql get primary keys of table

SELECT COLUMN_NAME
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = 'Your Database'
  AND TABLE_NAME = 'Your Table name'
  AND COLUMN_KEY = 'PRI';


SELECT COLUMN_NAME
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = 'Your Database'
  AND TABLE_NAME = 'Your Table name'
  AND COLUMN_KEY = 'UNI';

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Sql Example

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