Can we use function in WHERE clause?
Table of Contents
Can we use function in WHERE clause?
The answer is that you can’t get both performance and function returns in your where clause.
What can be the condition in WHERE clause in a SQL query?
The SQL WHERE clause filters the records affected by a command. You can use the WHERE clause in SQL with the SELECT, UPDATE, and DELETE statements. You can specify multiple WHERE clauses using an AND statement, but you only need to use the WHERE keyword once.
How do you find the minimum value in SQL query?
To find the minimum value of a column, use the MIN() aggregate function; it takes as its argument the name of the column for which you want to find the minimum value. If you have not specified any other columns in the SELECT clause, the minimum will be calculated for all records in the table.
Is there a minimum function in SQL?
The aggregate function SQL MIN() is used to find the minimum value or lowest value of a column or expression. This function is useful to determine the smallest of all selected values of a column.
How do you create a function in SQL example?
Define the CREATE FUNCTION (scalar) statement:
- Specify a name for the function.
- Specify a name and data type for each input parameter.
- Specify the RETURNS keyword and the data type of the scalar return value.
- Specify the BEGIN keyword to introduce the function-body.
- Specify the function body.
- Specify the END keyword.
Can we use 2 where clause in SQL?
Example – Two Conditions in the WHERE Clause (OR Condition) You can use the OR condition in the WHERE clause to test multiple conditions where the record is returned if any one of the conditions are met.
What does follow after the SQL where clause?
The correct answer to the question “What does follow after the SQL WHERE clause” is option (B). Definition of the condition to be met for the rows to be returned.
Is Min aggregate function in SQL?
An aggregate function performs a calculation one or more values and returns a single value….SQL Server Aggregate Functions.
| Aggregate function | Description |
|---|---|
| MIN | The MIN() aggregate function returns the lowest value (minimum) in a set of non-NULL values. |
Can you use Max in WHERE clause?
MAX() function with Having The SQL HAVING CLAUSE is reserved for aggregate function. The usage of WHERE clause along with SQL MAX() have also described in this page. The SQL IN OPERATOR which checks a value within a set of values and retrieve the rows from the table can also be used with MAX function.
How do you use the MIN aggregate function?
The aggregate function is often used with the GROUP BY clause and HAVING clause of the SELECT statement….SQL Server Aggregate Functions.
| Aggregate function | Description |
|---|---|
| MIN | The MIN() aggregate function returns the lowest value (minimum) in a set of non-NULL values. |
What is the function of the WHERE clause in SQL which comparison operators can you use in a WHERE clause?
Which comparison operators can you use in a WHERE clause? SQL provides a feature called WHERE clause which is used to extract only particular records that satisfy a listed criterion from the table. This clause can be used along with SELECT, DELETE, and UPDATE statements.