What is sqlcommand?

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What are the properties of a transaction?

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How to run pl sql program in mysql?

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How can I create a table from another table without copying any values from the old table?

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What are sql*plus environment variables?

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What is a design view?

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How does pl sql work?

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what is isam? : Sql dba

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Explain clause in sql?

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Explain spool.

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SELECT category, type, AVG(price) FROM products GROUP BY category, type ORDER BY 1, 2 If there are three distinct categories in the "products" table, and each one has five different types, how many rows are returned by the query above? 1. 1 row 2. 3 rows 3. 5 rows 4. 8 rows 5. 15 rows

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How to remove duplicate rows from a table?.

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