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6 Νοε 2013 · SELECT t.flngKey AS flngTaskKey, t.fstrAccountType, t.fstrTaskSource, CASE t.fstrCategory WHEN '' THEN '' ELSE t.fstrTaskSource + '_CAT_' + t.fstrCategory END AS fstrCategory, CASE t.fstrType WHEN '' THEN '' WHEN (wd.fstrWorkType = 'SUSIN1' -- I am getting a syntax error here on the = sign -- AND wd.fstrOwner = ' ' AND wd.flngworkkey = wr ...
2 Ιουν 2023 · The syntax of the SQL CASE expression is: CASE [expression] WHEN condition_1 THEN result_1. WHEN condition_2 THEN result_2 ... WHEN condition_n THEN result_n. ELSE result. END case_name. The CASE statement can be written in a few ways, so let’s take a look at these parameters. Parameters of the CASE Statement.
Oracle CASE expression allows you to add if-else logic to SQL statements without having to call a procedure. The CASE expression evaluates a list of conditions and returns one of the multiple possible results. You can use a CASE expression in any statement or clause that accepts a valid expression.
The CASE statement cannot have an ELSE NULL clause, and it is terminated with END CASE instead of END. For the first syntax, case_value is an expression. This value is compared to the when_value expression in each WHEN clause until one of them is equal.
16 Ιαν 2024 · To begin, we will examine the simplest syntax of the SQL CASE WHEN statement. This construct is especially helpful for segmenting records according to a given criteria and generating a new column to show the outcomes. Here’s the syntax: SELECT column_name, CASE WHEN condition THEN result END AS new_column FROM your_table;
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.
The CASE statement cannot have an ELSE NULL clause, and it is terminated with END CASE instead of END. For the first syntax, case_value is an expression. This value is compared to the when_value expression in each WHEN clause until one of them is equal.
