Which SQL keyword is used to specify a condition that rows must meet to be included?

Which SQL keyword is used to specify a condition that rows must meet to be included in the results of a SQL SELECT query?

In a SQL statement, the WHERE clause specifies criteria that field values must meet for the records that contain the values to be included in the query results.

Which SQL keyword is used to state the condition to specify the rows to be selected?

The SQL WHERE clause contains the condition that specifies which rows are to be selected. The result of an SQL SELECT operation can contain duplicate rows. To have SQL automatically eliminate duplicate rows from a result, use the keyword DISTINCT with the FROM 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.

How do you set multiple criteria in an Access query?

Open your query in Design view. In the query design grid, click the Criteria row of the field where you want to add the criterion. Add the criteria and press ENTER. You can use several types of criteria like text, dates (read about applying criteria to text and using dates as criteria) and functions.

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What is the basic form of SQL query?

The basic form of an SQL query is: SELECT [DISTINCT] {*| column_name (, column_name,…)} … [WHERE condition] [GROUP BY column_list] [HAVING condition] [ORDER BY column_list].

Which aggregate function is used to count rows?

The COUNT operator is usually used in combination with a GROUP BY clause. It is one of the SQL “aggregate” functions, which include AVG (average) and SUM. This function will count the number of rows and return that count as a column in the result set.

Which SQL keyword is used to change one or more rows in a table?

Rows in a table can be changed by using the SQL UPDATE statement. The SQL SET keyword is used to specify a new value when changing a column value.

Is the syntax of subquery same as regular query?

In SQL a Subquery can be simply defined as a query within another query. In other words we can say that a Subquery is a query that is embedded in WHERE clause of another SQL query. Important rules for Subqueries: … You can place the Subquery in a number of SQL clauses: WHERE clause, HAVING clause, FROM clause.