The Oracle/PLSQL CASE statement has the functionality of an IF-THEN-ELSE statement. Starting in Oracle 9i, you can use the CASE statement within a SQL statement. Syntax The syntax for the CASE statement in Oracle/PLSQL is: CASE [ expression ] WHEN condition_1 THEN result_1 WHEN condition...
2. Case Statement 只可以用在pl/sql中,不能用在SQL中,结束标志是END CASE!Case Statement 相当于一组IF…THEN…ELSE…END IF语句,不需要返回值,只是在条件匹配的时候执行某种操作而已,所以在每个WHEN…THEN之后需要有一个分号,表示一条执行语句! CASE {variable or expression} WHEN {value} THEN {one or mo...
CASE expression syntax is similar to an IF-THEN-ELSE statement. Oracle checks each condition starting from the first condition (left to right). When a particular condition is satisfied (WHEN part) the expression returns the tagged value (THEN part). If none of the conditions are matched, the...
In standard C, a case label in a switch statement can have only one associated value. Solaris Studio C allows an extension found in some compilers, known as case ranges. A case range specifies a range of values to associate with an individual case label. The case range syntax is: case...
the tagged value (THEN part). If none of the conditions are matched, the value mentioned in the ELSE part is returned. The ELSE part of the expression is not mandatory– CASE expression will return null if nothing is satisfied. Here is the basic syntax of an Oracle CASE When statement: ...
FromOracle Database 23ai, theautomatic SQL transpilercan extract SQL expressions in PL/SQL. These are then part of the SQL statement, so at runtime it's as-if the function doesn't exist! To do this, ensure thesql_transpilerparameter ison(it'soffby default). When a function in thew...
In standard C, a case label in a switch statement can have only one associated value. Oracle Developer Studio C allows an extension found in some compilers, known as case ranges. A case range specifies a range of values to associate with an individual case label. The case range syntax is...
The Oracle searchedCASEexpression evaluates a list of Boolean expressions to determine the result. The searchedCASEstatement has the following syntax: The searchedCASEexpression evaluates the Boolean expression (e1, e2, …) in eachWHENclause in the order that the Boolean expressions appear. It returns...
如何使用 Oracle Case Statement 测试不等式问题描述 投票:0回答:3这很好用: select case (1+2) -- (or_some_more_complicated_formula_yielding_a_numeric_result) when 200 then '200' when 100 then '100' else 'other' end hi_med_low from dual ; 但我需要做更多这样的事情: select case (1+...
Oracle Spatial and Graph - Version 11.2.0.3 and later: ORA-06592: CASE Not Found While Executing CASE Statement When Running SEM_MATCH Query