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The CASE statement goes through conditions and return a value when the first condition is met (like an IF-THEN-ELSE statement). So, once a condition is true, it will stop reading and return the result. If no conditions are true, it will return the value in the ELSE clause. If there is no ELSE part and no conditions are true, it returns NULL.
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Edit the SQL Statement, ... Click "Run SQL" to execute the...
- MySQL CASE Statement
The MySQL CASE Statement. The CASE statement goes through...
- Try It Yourself
7 sty 2013 · Using a SELECT statement with a searched CASE expression. Within a SELECT statement, the searched CASE expression allows for values to be replaced in the result set based on comparison values. The following example displays the list price as a text comment based on the price range for a product.
MySQL CASE expression is a control flow structure that allows you to add if-else logic to a query. Generally speaking, you can use the CASE expression anywhere that allows a valid expression e.g., SELECT, WHERE and ORDER BY clauses. The CASE expression has two forms: simple CASE and searched CASE.
22 gru 2011 · Suppose you have companies table and you want to count number of records in it. A sample query would be something like this. SELECT IF( count(*) > 15, 'good', IF( count(*) > 10, 'average', 'poor' ) ) as data_count FROM companies
The MySQL CASE Statement. The CASE statement goes through conditions and returns a value when the first condition is met (like an if-then-else statement). So, once a condition is true, it will stop reading and return the result.
The following SQL statement selects all (including the duplicates) values from the "Country" column in the "Customers" table: Example SELECT Country FROM Customers;
The CASE statement goes through conditions and return a value when the first condition is met (like an IF-THEN-ELSE statement). So, once a condition is true, it will stop reading and return the result.
