oracledecodecasewhen

decode is the function Oracle originally provided with releases of the database prior to 8.1.6. Starting with 816, CASE is the standard way to achieve the same ...

2022年10月8日 — CASE: Case are the statement in sql.It's a way of responding to the occurrence of a value or what action to be performed when a particular value ...

CASE is a statement while DECODE is a function. CASE can work with logical operators other than '=' : DECODE performs an equality check only.

2011年9月16日 — UPDATE WR_RPT_GROUP A set A.RPT_CATEGORY_ID = CASE WHEN ( -- scope of C starts from here SELECT C.CONTROL_PLAN FROM GRPMISC C WHERE C.GRP = A.

2020年4月3日 — Case is a statement in Oracle. It is also perform transfer your data to the another data. It is same as decode for perform IF-THEN-ELSE logic.

The decode and case functions are used within the Oracle database to transform data values for one value to another. One of the most amazing features of the ...

2016年5月3日 — I would suggest using CASE in almost every case. CASE is better than DECODE because it is easier to read, and can handle more complicated logic.

2017年8月17日 — 二，CASE WHEN · SELECT CASE · WHEN price IS NULL THEN 'Unpriced' · WHEN price < 10 THEN 'Bargain' · WHEN price BETWEEN 10 and 20 THEN 'Average' ...

2018年6月1日 — 如下测试数据，我要把ClassId 的1变成一班，2变成二班，3变成三班，那sql要怎样写呢？

2010年7月7日 — In SQL, CASE is an expression not a statement. The CASE statement is specific to PL/SQL. Also, DECODE is a SQL function, therefore it is an ...