Here is an example that demonstrates how to use the CASE statement to compare different conditions: SELECT CASE WHEN a < b THEN 'hello' WHEN d < e THEN 'goodbye' END FROM suppliers; Frequently Asked Questions Question:Can you create a CASE statement that evaluates two different fields? I w...
but notice that some conditions have been added based on what department number the employee is in. You can see that a searched case statement can have many different when clauses, and that you can apply many criteria
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+...
Fields inherited from interface oracle.javatools.db.sql.SQLFragment CONNECTBY, FROM, GROUPBY, HAVING, MODEL, NOCYCLE, ORDERBY, ORDERSIBLINGSBY, PRIOR, SELECT, STARTWITH, TYPE, WHEREFields inherited from interface oracle.javatools.db.DBObject COMMENTConstructor Summary CaseStatement.WhenThen() Cas...
The first directory the compiler searches for filename is the current working directory and not the directory containing the main source file, as is the case when a file is explicitly included. For example, the following directory structure contains two header files with the same name, but at ...
This tutorial provides an introduction to the Structured Query Language (SQL), learn how to create tables with primary keys, columns, constraints, indexes, and foreign keys. Tutorial SQL Macros - Creating parameterised views This tutorial explains how to create a parameterized view using SQL Macros...
A partner-publishedSolution Profile in the OPN Partner Finderwith the following statement: “[Insert Partner Application Name] version [Insert Version/Release Number] has been self-validated with Oracle Database [Insert Database Version] on Oracle Exadata Cloud [Insert “Service” or “at Customer”...
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 ...
You can also view an execution plan for a single SQL statement with SQL Developer or in the SQL Workshop area of Application Express, which is discussed in Chapter 15. The optimizer writes all of this information to a table in the database. By default, the optimizer uses a table called...
The value can be a comma delimited list of schema name but not when using TABLE export type because in this case it will generate the CREATE SCHEMA statement and it doesn't support multiple schema name. For example, if you set PG_SCHEMA to something like "user_schema, public", the ...