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Asked: 2026-06-15T06:35:11+00:00

I have a table below with various column. I want to update the values

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I have a table below with various column.
I want to update the values in certain feilds based on a value on other fields.

My Table is here

DROP TABLE IF EXISTS my_table; 
CREATE TABLE my_table
(id INT NOT NULL AUTO_INCREMENT UNIQUE,
Shot VARCHAR(4),
lay VARCHAR(15) NOT NULL,
lay_avaibility VARCHAR(15) NOT NULL,
blk VARCHAR(10) NOT NULL,
blk_avaibility VARCHAR(15) NOT NULL,
pri VARCHAR(10) NOT NULL,
pri_avaibility VARCHAR(15) NOT NULL,
ani VARCHAR(10) NOT NULL,
ani_avaibility VARCHAR(15) NOT NULL,
status VARCHAR(5)
);

INSERT INTO my_table VALUES
(1,'SH01','1863','Offline','1863','Offline','P4645','Offline','P4557','Offline','Over'),
(2,'SH02','1863','Offline','P4645','Offline','P4557','Offline','1863','Offline','Over')
(3,'SH03','P4645','Offline','P4557','Offline','1863','Offline','1863','Offline','WIP'),
(4,'SH04','1863','Offline','P4645','Offline','P4557','Offline','1863','Offline','RTK'),
(5,'SH05','1863','Offline','1863','Offline','P4645','Offline','P4557','Offline','WIP'),
(6,'SH06','P4557','Offline','P4645','Offline','P4645','Offline','P4557','Offline','WIP');

SELECT * FROM my_table;

+----+------+-------+----------------+-------+----------------+-------+----------------+-------+----------------+--------+
| id | Shot | lay   | lay_avaibility | blk   | blk_avaibility | pri   | pri_avaibility | ani   | ani_avaibility | status |
+----+------+-------+----------------+-------+----------------+-------+----------------+-------+----------------+--------+
|  1 | SH01 | 1863  | Offline        | 1863  | Offline        | P4645 | Offline        | P4557 | Offline        | Over   |
|  2 | SH02 | 1863  | Offline        | P4645 | Offline        | P4557 | Offline        | 1863  | Offline        | Over   |
|  3 | SH03 | P4645 | Offline        | P4557 | Offline        | 1863  | Offline        | 1863  | Offline        | WIP    |
|  4 | SH04 | 1863  | Offline        | P4645 | Offline        | P4557 | Offline        | 1863  | Offline        | RTK    |
|  5 | SH05 | 1863  | Offline        | 1863  | Offline        | P4645 | Offline        | P4557 | Offline        | WIP    |
|  6 | SH06 | P4557 | Offline        | P4645 | Offline        | P4645 | Offline        | P4557 | Offline        | WIP    |
+----+------+-------+----------------+-------+----------------+-------+----------------+-------+----------------+--------+
6 rows in set (0.00 sec)

SELECT VERSION();

+-----------+
| VERSION() |
+-----------+
| 5.5.23    |
+-----------+
1 row in set (0.02 sec)

i want to update all lay_avaibility,blk_avaibility,pri_avaibility,ani_avaibility columns to ‘Online’ where lay,pri,blk,ani columns have ‘1863’ ie., the final table should look like below

+----+------+-------+----------------+-------+----------------+-------+----------------+-------+----------------+--------+
| id | Shot | lay   | lay_avaibility | blk   | blk_avaibility | pri   | pri_avaibility | ani   | ani_avaibility | status |
+----+------+-------+----------------+-------+----------------+-------+----------------+-------+----------------+--------+
|  1 | SH01 | 1863  | Online         | 1863  | Online         | P4645 | Offline        | P4557 | Offline        | Over   |
|  2 | SH02 | 1863  | Online         | P4645 | Offline        | P4557 | Offline        | 1863  | Online         | Over   |
|  3 | SH03 | P4645 | Offline        | P4557 | Offline        | 1863  | Online         | 1863  | Online         | WIP    |
|  4 | SH04 | 1863  | Online         | P4645 | Offline        | P4557 | Offline        | 1863  | Online         | RTK    |
|  5 | SH05 | 1863  | Online         | 1863  | Online         | P4645 | Offline        | P4557 | Offline        | WIP    |
|  6 | SH06 | P4557 | Offline        | P4645 | Offline        | P4645 | Offline        | P4557 | Offline        | WIP    |
+----+------+-------+----------------+-------+----------------+-------+----------------+-------+----------------+--------+
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1 Answer

  1. Editorial Team

    You should be able to use a CASE statement like this with an Update command: 

    UPDATE my_table 
    SET lay_availability = CASE WHEN lay = '1863' THEN 'Online' ELSE lay_availability END,
    blk_availability = CASE WHEN blk = '1863' THEN 'Online' ELSE blk_availability END,
    pri_availability = CASE WHEN pri = '1863' THEN 'Online' ELSE pri_availability END,
    ani_avaibility   = CASE WHEN ani = '1863' THEN 'Online' ELSE ani_avaibility END;
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