Can we use in with WHERE in SQL?

IN (SELECT) You can also use IN with a subquery in the WHERE clause. With a subquery you can return all records from the main query that are present in the result of the subquery.

What is ||

The || pipes operator in a string expression concatenates two or more character or binary strings, columns, or a combination of strings and column names into one expression (a string operator). For example, SELECT 'SQL ' || 'Server'; returns SQL Server .

How to use in in SELECT statement?

Using the IN operator to provide a list of values:

  1. SELECT column1, column2, …, columnN FROM table_name WHERE column_name IN (val-1, val-2, …, val-N);
  2. SELECT column1, column2…. …
  3. SELECT * FROM STUDENT WHERE course_id IN (1, 2, 3);

How to use or in WHERE condition in SQL?

The syntax to use the OR operator in SQL is: SELECT * FROM table_name WHERE condition1 OR condition2 OR… conditionN; table_name: name of the table. condition1,2,..

SQL IN Operator – W3Schools

SQL SELECT IN Statement – GeeksforGeeks
SQL SELECT IN Statementallows to specify multiple values in the WHERE clause. It is similar to using multiple OR conditions. It is particularly useful for filtering records based on a list of values or the results of a subquery. This makes it useful for checking whether a value belongs to a predefined set, simplifying queri…
SQL WHERE IN | NOT IN – Dofactory
Learn how to use the SQL WHERE IN clause to return values that match values in a list, either hardcoded or generated by a subquery. See examples of WHERE IN, NOT IN, …
SQL WHERE IN Examples for SELECT, UPDATE, …
The SQL WHERE IN clause is used to specify a list of values in a SELECT, INSERT, UPDATE, or DELETE statement. The clause is used to help narrow down results from a query and is generally used in conjunction with …