With SQL, how do you select all the records from a table named "Persons" where the value of the column "FirstName" is "Peter"?
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SELECT [all] FROM Persons WHERE FirstName='Peter' ;
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SELECT * FROM Persons WHERE FirstName='Peter' ;
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SELECT * FROM Persons WHERE FirstName LIKE 'Peter' ;
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SELECT [all] FROM Persons WHERE FirstName LIKE 'Peter' ;
The correct syntax is 'SELECT * FROM Persons WHERE FirstName='Peter'' which uses the WHERE clause with an equality operator. Option A incorrectly uses square brackets, while options C and D use LIKE operator which is for pattern matching, not exact values. The WHERE clause filters rows based on specified conditions.
To select all the records from a table named "Persons" where the value of the column "FirstName" is "Peter", you can use the following SQL query:
B. SELECT * FROM Persons WHERE FirstName='Peter';
Explanation:
- The "SELECT" statement is used to retrieve data from a database table.
- The asterisk (*) is a wildcard character that represents all columns in the table.
- "FROM Persons" specifies the table name from which the data will be retrieved.
- "WHERE FirstName='Peter'" is the condition that filters the records to only those where the value of the "FirstName" column is "Peter".