What are the types of keys?
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Which is better join or subquery?
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Can you inner join the same table?
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What is procedure and function?
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what are numeric data types? : Sql dba
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Display the total debit counts, total credit counts, sum of total debits, sum of total credits from an employee's transaction table (a single table) containing the following columns. Transaction_number Transaction_amount Transaction_date Transaction_type --> tells if the amount is a credit or a debit. As the query alone is important, the table is left with specifying just the field's name. Pls help me with this query.
Explain the working of foreign key?