Postgresql ปรับปรุงวันโดยเดทกัน

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3
0

postgres ปรับปรุงด้วถ้าเงื่อนไขกับการค้นหา

update t1
        set t1.current_location =   
        CASE  
			WHEN SUBQUERY.status = 0 THEN 'Deployed' 
			WHEN SUBQUERY.status = 1 THEN 'Retrieved' 
			WHEN SUBQUERY.status = 2 THEN 'Lost' 
            ELSE t1.current_location
		END 
from (
    select t3.serial_number, t2.status
    from t2 inner join t3
        on t2.some_id = t3.some_id
    ) as SUBQUERY

where SUBQUERY.serial_number = t1.serial_number;
1
0

postgres ปรับปรุงเดียวคอลัมน์

UPDATE table_name 
SET column_one = TRUE,
WHERE column_two = 'some string'

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