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Questions and Answers
Which SQL keyword is used to add a column in an existing table?
Which SQL keyword is used to add a column in an existing table?
- CREATE
- ALTER
- ADD CONSTRAINT
- ADD (correct)
What does the SQL keyword 'FROM' specify?
What does the SQL keyword 'FROM' specify?
- Filters the result set based on a condition
- Executes a stored procedure
- Creates a new SQL database
- Specifies the table on which to perform operations (correct)
When using SQL, what does the 'HAVING' keyword do?
When using SQL, what does the 'HAVING' keyword do?
- Filters rows based on a condition after grouping (correct)
- Adds a constraint after a table is created
- Executes a stored procedure
- Updates a view based on the result set of a SELECT statement
Which SQL keyword creates a unique index on a table with no duplicate values?
Which SQL keyword creates a unique index on a table with no duplicate values?
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What is the purpose of the SQL keyword 'BACKUP DATABASE'?
What is the purpose of the SQL keyword 'BACKUP DATABASE'?
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Which SQL keyword is used to change the data type of a column in a table?
Which SQL keyword is used to change the data type of a column in a table?
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What is the data type for a very small integer in MySQL?
What is the data type for a very small integer in MySQL?
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Which data type in MySQL is suitable for storing large text strings?
Which data type in MySQL is suitable for storing large text strings?
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Which data type represents a date and time value in MySQL?
Which data type represents a date and time value in MySQL?
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'VARCHAR' in MySQL is used for storing:
'VARCHAR' in MySQL is used for storing:
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'DECIMAL or NUMERIC' in MySQL is used for storing:
'DECIMAL or NUMERIC' in MySQL is used for storing:
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'ENUM' in MySQL allows a string object to have only one value chosen from:
'ENUM' in MySQL allows a string object to have only one value chosen from:
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