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Tip of the Day
Language: SQL
Expertise: Beginner
Apr 11, 2017

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Use SUBSTR to Remove the Last Character from any String in Oracle SQL

Let's say you have a set of string values (such as values in a column) and you want to remove the last character. But, the string values are all different lengths. How can you do that?

Use a combination of the LENGTH and SUBSTR functions.

First, use LENGTH to find the length of a string. Then, find use SUBSTR to get the entire string except for the LENGTH minus 1.

SELECT
SUBSTR(your_column, 0, LENGTH(your_column) - 1)
FROM your_table;

This will remove the last character from your string. It's great for removing trailing slashes or other characters from the end of a string.

Ben Brumm
 
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