“Variabel PSQL Qith” Kode Jawaban

variabel postgresql dalam kueri

-- with myVar as (select "any value really")
-- 		then, to get access to the value stored in this construction, you do
-- 			(select * from myVar)
-- for example

with var as (select 123)    
... where id = (select * from var)

-- You could event re-cast the value (e.g. from INT to VARCHAR) 
with var as (select 123)    
... where id = ((select * from var)::VARCHAR)
Muddy Moose

Variabel PSQL Qith

WITH vars AS (SELECT 42 AS answer, 3.14 AS appr_pi)
SELECT t.*, vars.answer, t.radius*vars.appr_pi
FROM table AS t, vars;
Obnoxious Oystercatcher

Jawaban yang mirip dengan “Variabel PSQL Qith”

Pertanyaan yang mirip dengan “Variabel PSQL Qith”

Jelajahi jawaban kode populer menurut bahasa

Jelajahi bahasa kode lainnya