LFCS · Question #89
Which of the following words is used to restrict the records that are returned from a SELECT SQL query based on a supplied criteria for the values in the records?
The correct answer is C. WHERE. The WHERE clause in a SQL SELECT statement is used to filter rows based on specified conditions, returning only the records that satisfy the criteria.
Question
Options
- ACASE
- BFROM
- CWHERE
- DIF
How the community answered
(42 responses)- A5% (2)
- B2% (1)
- C88% (37)
- D5% (2)
Why each option
The `WHERE` clause in a SQL `SELECT` statement is used to filter rows based on specified conditions, returning only the records that satisfy the criteria.
`CASE` is used for conditional logic within a query to return different values based on conditions, not to filter rows.
`FROM` specifies the table(s) from which data is retrieved, not for filtering records.
In SQL, the `WHERE` clause is a fundamental component of the `SELECT` statement. It allows you to specify a condition that rows must meet to be included in the result set, effectively filtering the data based on the values within the records.
`IF` is a conditional function available in some SQL dialects, but `WHERE` is the standard clause for filtering rows in a `SELECT` statement.
Concept tested: SQL `SELECT` query filtering
Source: https://learn.microsoft.com/en-us/sql/t-sql/queries/select-where-from-transact-sql
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