Is a foreign key always unique?
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What are properties of the transaction?
Why is partition used in sql?
How can we avoid duplicating records in a query?
I need a function for a train ticket reservation please answer it thanks in advance
How would you pass hints to the sql processor?
How to know the last executed procedure?
What is the difference between anonymous block and named block or stored procedure?
How to get each name only once from an employee table?
What are two statement types in sql?
what is ref cursor in pl/sql?
What is sql select statement?
How many disk partitions should I have?