The CASE statement can be used in the following versions of Oracle/PLSQL: Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i Example The CASE statement can be used in Oracle/PLSQL. You could use the CASE statement in a SQL statement as follows: (includes theexpressionclause) SELECT table_name...
14 rows selected. 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}...
The coalesce statement is a bit like the Oracle NVL function. Given an unlimited number of arguments, it will return the first non-null value in those arguments. Here is an example: SELECT ename, COALESCE(comm, 0) COMM FROM emp; ENAME COMM --- --- SMITH 0 ALLEN 300 WARD 500 JONES ...
You can use aCASEexpression in any statement or clause that accepts a valid expression. For example, you can use theCASEexpression in statements such asSELECT,UPDATE, orDELETE, and in clauses likeSELECT,WHERE,HAVING, andORDDER BY. OracleCASEexpression has two formats: the simpleCASEexpression ...
Simple CASE statement example The following example compares single value (c_grade) with many possible values ‘A’, ‘B’,’C’,’D’, and ‘F’: DECLARE c_grade CHAR( 1 ); c_rank VARCHAR2( 20 ); BEGIN c_grade := 'B'; CASE c_grade WHEN 'A' THEN c_rank := 'Excellent' ...
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+...
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 thewh...
oracle.javatools.db.sql Contains an API for declaratively parsing SQL queries (SELECT statements). Uses ofCaseStatement.WhenTheninoracle.javatools.db.sql Methods inoracle.javatools.db.sqlthat returnCaseStatement.WhenThen Modifier and TypeMethod and Description ...
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
This section provides a JavaScript tutorial example showing how to write a 'switch ... case' statement.© 2025 Dr. Herong Yang. All rights reserved.To help you understand how "switch ... case" statements work, I wrote the following the JavaScript tutorial example, Switch_Case_Statements.htm...