How do I return multiple values for then clause in an SQL CASE expression SQL Server?

Can CASE statement return multiple values in SQL?

@yzhang – With CASE only the first match will return values. If you want the possibility of multiple conditions mathcing each input row, you need to make each check indpendantly, and UNION the results together.

How do you use multiple values in a case statement?

SQL:2003 standard allows to define multiple values for simple case expression: SELECT CASE c. Number WHEN ‘1121231’,’31242323′ THEN 1 WHEN ‘234523’,’2342423′ THEN 2 END AS Test FROM tblClient c; It is optional feature: Comma-separated predicates in simple CASE expression“ (F263).

How do you give multiple conditions in a case in SQL?

Here are 3 different ways to apply a case statement using SQL:

  1. (1) For a single condition: CASE WHEN condition_1 THEN result_1 ELSE result_2 END AS new_field_name.
  2. (2) For multiple conditions using AND: CASE WHEN condition_1 AND condition_2 THEN result_1 ELSE result_2 END AS new_field_name.
INTERESTING:  What version is SQL Server 2016 SP2?

How can I return multiple values from a function in SQL?

A SQL Server function can return a single value or multiple values. To return multiple values, the return type of the the function should be a table. Running the query will list out 10 consecutive dates starting from today, as shown below: As you can see, the return type of the function test_function is a table.

Can CASE statement return multiple values in Oracle?

4 Answers. A CASE statement cannot return more than one value, it is a function working on one value.

Can we use in clause in case statement in Oracle?

Introduction to Oracle CASE expression

You can use a CASE expression in any statement or clause that accepts a valid expression. For example, you can use the CASE expression in statements such as SELECT , UPDATE , or DELETE , and in clauses like SELECT , WHERE , HAVING , and ORDDER BY .

Can you have multiple conditions in a case statement?

Multiple conditions in CASE statement

You can evaluate multiple conditions in the CASE statement.

Can we use CASE statement in where clause in SQL?

CASE STATEMENT IN WHERE CLAUSE:

The CASE statement returns the value based on condition. We can use a case statement in Where, Order by and Group by clause. … So, by using a CASE statement with the where condition displays the result.

What does exists do in SQL?

The EXISTS condition in SQL is used to check whether the result of a correlated nested query is empty (contains no tuples) or not. The result of EXISTS is a boolean value True or False. It can be used in a SELECT, UPDATE, INSERT or DELETE statement.

INTERESTING:  How do I get SQL editor in eclipse?

How can we use multiple conditions in switch CASE in Java?

default : // code inside the default case . } You can combine multiple cases as you can see in syntax. Whenever you want to combine multiple cases you just need to write a case with case label and colons(:). You can’t provide the break statement in between of combined cases.

How many tables can be join in SQL query?

Theoretically, there is no upper limit on the number of tables that can be joined using a SELECT statement. (One join condition always combines two tables!) However, the Database Engine has an implementation restriction: the maximum number of tables that can be joined in a SELECT statement is 64.

How many CASE statements are there in SQL?

SQL Server allows for only 10 levels of nesting in CASE expressions. The CASE expression cannot be used to control the flow of execution of Transact-SQL statements, statement blocks, user-defined functions, and stored procedures.

Can function return multiple values?

If we want the function to return multiple values of same data types, we could return the pointer to array of that data types. We can also make the function return multiple values by using the arguments of the function.

How can I return multiple values from a stored procedure in MySQL?

MySQL stored function returns only one value. To develop stored programs that return multiple values, you need to use stored procedures with INOUT or OUT parameters.

How do I have multiple values in one row in SQL?

STUFF Function in SQL Server

  1. Create a database.
  2. Create 2 tables as in the following.
  3. Execute this SQL Query to get the student courseIds separated by a comma. USE StudentCourseDB. SELECT StudentID, CourseIDs=STUFF. ( ( SELECT DISTINCT ‘, ‘ + CAST(CourseID AS VARCHAR(MAX)) FROM StudentCourses t2.
INTERESTING:  Quick Answer: What does Java Decorator do?
Categories BD