I have a problem with deleting first character in a one column of my table and updating my table with new values. I wanna do it in on query (remove first character in string in one column and update table). Anyone can help?
My table:
ID | column1 | column2
L12| 5 | 10
L14| 6 | 12
My desired output:
ID | column1 | column2
12| 5 | 10
14| 6 | 12
A simple update
with substr
:
Before:
SQL> select * from your_table;
ID COLUMN1 COLUMN2
--- ---------- ----------
L12 5 10
L14 6 12
Update:
SQL> update your_table set
2 id = substr(id, 2);
2 rows updated.
After:
SQL> select * from your_table;
ID COLUMN1 COLUMN2
--- ---------- ----------
12 5 10
14 6 12
SQL>
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.