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SQL Interview Preparation

Answer: Filter with the WHERE Clause

Explore how to filter SQL query results effectively by using the WHERE clause to specify conditions with equality, relational, and logical operators. Understand alternative filtering using the LIKE operator for pattern matching. Learn to apply variables for dynamic filtering and practice finding records under multiple conditions.

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Solution

The solution is given below:

MySQL
/* The query to find the student records for st-104 */
SELECT * FROM StudentGrades 
WHERE  StudentID = 'st-104';

Explanation

The explanation of the solution code is given below:

  • Line 2: The SELECT query selects all the columns using the * wildcard. The FROM clause specifies the table name as Students. ...