在Oracle中解码转换为Postgres [英] decode in oracle convert to postgres

问题描述

我想将DECODE函数从Oracle转换为Postgres命令。 示例Oracle命令：选择DECODE(p.statusgeometry1，‘PASS’，‘FAIL’)作为状态

请帮助和指导

推荐答案

decode等效项CASE：

WITH p (statusgeometry) AS (VALUES (1),(2))

SELECT 
  CASE statusgeometry
    WHEN 1 THEN 'pass'
    WHEN 2 THEN 'fail'
  END,
  -- The following syntax is useful in case you need to do  "something"  
  -- with the columns depending on the condition, e.g lower(), upper(), etc..
  CASE 
    WHEN statusgeometry = 1 THEN 'pass'
    WHEN statusgeometry = 2 THEN 'fail'
  END
FROM p;

 case | case 
------+------
 pass | pass
 fail | fail
(2 rows)

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