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 ...
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...
Simple PL/SQL CASE statement A simple CASE statement evaluates a single expression and compares the result with some values. The simple CASE statement has the following structure: CASE selector WHEN selector_value_1 THEN statements_1 WHEN selector_value_1 THEN statement_2 ... ELSE else_state...
public CaseStatement.WhenThen() CaseStatement.WhenThenpublic CaseStatement.WhenThen(SQLFragment condition, SQLFragment result) ... WHEN condition THEN result ...Method DetailsetWhenExpressionpublic void setWhenExpression(SQLFragment whenExpression) get...
This use case lets a user view a summary of account and service charges on a statement for the selected account. Main Path for Viewing a Statement Account Summary The main path occurs when a user clicks Statement, then clicks Account to display the Account Summary page for the selected accou...
Cloud ERP providers roll out updates regularly (as often as monthly, in Oracle’s case). This means that the latest new and revolutionary emerging technologies—such as AI, digital assistants, machine learning, blockchain, augmented reality, and the Internet of Things (IoT)—become available to...
WHEN SEARCH_CONDITION N THEN STATEMENT_N; ELSE STATEMENT_N+1; END CASE; 例 SELECT FROM u.*, CASE u.sex WHEN 1 THEN '男' WHEN 0 THEN '女' END AS sex_ch users u SELECT FROM u.*, CASE WHEN u.sex = 1 THEN '男' WHEN u.sex = 0 THEN '女' END AS sex_ch users u 6.2 ...
The output of this program is: In one case, the output of atan2 is negative and in the other case it's positive. It depends on whether -0.0 or 0.0 gets passed as the first argument. What causes the "pure virtual function call" message at run time? A "pure virtual function called" ...
To facilitate the conversion of LONG datatypes to LOBs, Oracle9i included support for LOBs in most functions that support LONGs, as well as an option to the ALTER TABLE statement that allows the automatic migration of LONG datatypes to LOBs. BFILE The BFILE datatype acts as a pointer to a ...
SQL Macros - Creating parameterised views This tutorial explains how to create a parameterized view using SQL Macros. The examples use the built-in sales history schema so there are no setup steps. Script Simple Explain Plan This script explains the plan for a query of the sh.sales and sh....