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Questions and Answers
What is the purpose of the DELETE command in SQL?
What is the purpose of the DELETE command in SQL?
What is the purpose of the SET clause in an UPDATE command?
What is the purpose of the SET clause in an UPDATE command?
What is the equivalent operation of the SELECT clause in RA?
What is the equivalent operation of the SELECT clause in RA?
What is the minimum number of clauses required in a simple SQL retrieval query?
What is the minimum number of clauses required in a simple SQL retrieval query?
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What is the purpose of the FROM clause in a SQL query?
What is the purpose of the FROM clause in a SQL query?
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What is the maximum number of clauses that can be present in a simple SQL retrieval query?
What is the maximum number of clauses that can be present in a simple SQL retrieval query?
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What is the purpose of using aliases in SQL queries?
What is the purpose of using aliases in SQL queries?
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What is the result of a query that selects from multiple relations without a WHERE clause?
What is the result of a query that selects from multiple relations without a WHERE clause?
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What is the purpose of the asterisk (*) in SQL queries?
What is the purpose of the asterisk (*) in SQL queries?
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What is the result of a SELECT query without a DISTINCT keyword?
What is the result of a SELECT query without a DISTINCT keyword?
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What is the purpose of the WHERE clause in SQL queries?
What is the purpose of the WHERE clause in SQL queries?
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What is the result of a query that selects from a single relation without a WHERE clause?
What is the result of a query that selects from a single relation without a WHERE clause?
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What is the primary purpose of the ALTER TABLE statement in SQL?
What is the primary purpose of the ALTER TABLE statement in SQL?
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What is the name of the language used to define the structure of a database?
What is the name of the language used to define the structure of a database?
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What is the command used to remove a table from the database?
What is the command used to remove a table from the database?
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What is the purpose of the GRANT command in SQL?
What is the purpose of the GRANT command in SQL?
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What is the command used to add a new column to a table?
What is the command used to add a new column to a table?
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What is the language used to control access to a database?
What is the language used to control access to a database?
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What is the purpose of the BETWEEN operator in SQL?
What is the purpose of the BETWEEN operator in SQL?
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What is the function of the ORDER BY clause in SQL?
What is the function of the ORDER BY clause in SQL?
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What is the purpose of the IN operator in SQL?
What is the purpose of the IN operator in SQL?
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What is the purpose of transaction control commands in SQL?
What is the purpose of transaction control commands in SQL?
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What is the result of the SQL query 'SELECT Fname, Lname FROM EMPLOYEE WHERE Super_ssn IS NULL'?
What is the result of the SQL query 'SELECT Fname, Lname FROM EMPLOYEE WHERE Super_ssn IS NULL'?
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What is the feature of SQL that allows for the creation of triggers?
What is the feature of SQL that allows for the creation of triggers?
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What is the purpose of qualifying an attribute name with the relation name in a query?
What is the purpose of qualifying an attribute name with the relation name in a query?
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What is the significance of the 'AS' keyword in a SQL query?
What is the significance of the 'AS' keyword in a SQL query?
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What is the purpose of the 'WHERE' clause in a SQL query?
What is the purpose of the 'WHERE' clause in a SQL query?
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What is the function of an alias in a SQL query?
What is the function of an alias in a SQL query?
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What is the result of the query: 'SELECT Fname, Lname, Address FROM EMPLOYEE as E, DEPARTMENT as D WHERE Dname='Research' AND D.Dnumber=E.Dno'?
What is the result of the query: 'SELECT Fname, Lname, Address FROM EMPLOYEE as E, DEPARTMENT as D WHERE Dname='Research' AND D.Dnumber=E.Dno'?
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What is the purpose of the 'FROM' clause in a SQL query?
What is the purpose of the 'FROM' clause in a SQL query?
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