How do I replace a character in a string in PL SQL?

Contents show

How do I remove a specific character from a string in Oracle?

In PL/SQL you could write yourself a function using regexp_replace, like this: function deletePrefix(stringName in varchar2) return varchar2 is begin return regexp_replace(stringName, ‘^[a-zA-Z]+_’, ”); end; or just use this in plain sql like: regexp_replace(stringName, ‘^[a-zA-Z]+_’, ”);

How do I remove a character from a string in PL SQL?

Oracle / PLSQL: TRIM Function

Description. The Oracle/PLSQL TRIM function removes all specified characters either from the beginning or the end of a string.
Syntax. The syntax for the TRIM function in Oracle/PLSQL is: TRIM( [ [ LEADING | TRAILING | BOTH ] trim_character FROM ] string1 ) …
Returns. …
Note. …
Applies To. …
Example.

How do I replace a character in SQL?

To replace all occurrences of a substring within a string with a new substring, you use the REPLACE() function as follows:

REPLACE(input_string, substring, new_substring); …
SELECT REPLACE( ‘It is a good tea at the famous tea store.’, ‘

THIS IS IMPORTANT: How do I view job activity monitor in SQL Server?

How can I replace multiple characters in a string in Oracle?

SELECT REPLACE(REPLACE(‘TEST123′,’123′,’456′),’45’,’89’) FROM DUAL; will replace the 123 with 456, then find that it can replace the 45 with 89. For a function that had an equivalent result, it would have to duplicate the precedence (ie replacing the strings in the same order).

What is the regex for special characters?

Supported Special RegEx Characters

Special Characters	Description
cX	Matches a control character ( CTRL + A-Z ), where X is the corresponding letter in the alphabet.
d	Matches any digit.
D	Matches any non-digit.
f	Matches a form feed.

How do I remove special characters from a string?

Example of removing special characters using replaceAll() method

public class RemoveSpecialCharacterExample1.
{
public static void main(String args[])
{
String str= “This#string%contains^special*characters&.”;
str = str.replaceAll(“[^a-zA-Z0-9]”, ” “);
System.out.println(str);
}

How can I remove last character from a string in PL SQL?

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.

How do I remove the last character of a string?

There are four ways to remove the last character from a string:

Using StringBuffer. deleteCahrAt() Class.
Using String. substring() Method.
Using StringUtils. chop() Method.
Using Regular Expression.

How can I remove last character from a string in SQL?

Remove last character from a string in SQL Server

Using the SQL Left Function. Declare @name as varchar(30)=’Rohatash’ Select left(@name, len(@name)-1) as AfterRemoveLastCharacter.
Using the Substring Function. Declare @name as varchar(30)=’Rohatash’ Select substring(@name, 1, len(@name)-1) as AfterRemoveLastCharacter.

How do you do multiple replaces in SQL?

You can do it using CTE to split the table values into E, P and M, then replace and put back together. I assumed each record has a unique identifer Id but please replace that with whatever you have.

THIS IS IMPORTANT: What is MS SQL Server 2008 R2?

How do I find a character in a string in SQL?

We use the SQL CHARINDEX function to find the position of a substring or expression in a given string. We might have a character in different positions of a string. SQL CHARINDEX returns the first position and ignores the rest of matching character positions in a string.

Is there a Replace function in SQL?

SQL Server REPLACE() Function

The REPLACE() function replaces all occurrences of a substring within a string, with a new substring. Note: The search is case-insensitive. Tip: Also look at the STUFF() function.

How do I replace a character in a string in Oracle?

Oracle / PLSQL: REPLACE Function

Description. The Oracle/PLSQL REPLACE function replaces a sequence of characters in a string with another set of characters.
Syntax. The syntax for the REPLACE function in Oracle/PLSQL is: REPLACE( string1, string_to_replace [, replacement_string] ) …
Returns. …
Applies To. …
Example.

How can I remove multiple special characters from a string in Oracle?

If you want to replace multiple, you can use nested functions, which can get messy. REGEXP_REPLACE uses regular expressions to replace characters.
…
In Oracle SQL, you have three options for replacing special characters:

Using the REPLACE function.
Using the REGEXP_REPLACE function.
Using the TRANSLATE function.

How do you replace a string in a specific position in Oracle?

Replace text at a particular location/offset

SELECT replacepos(‘NNNNNNN’,’Y’,5) FROM dual; will return ‘NNNNYNN’. As you will observe, the character at position 5 is replaced. …
SELECT replace(‘NHNMRDW’,’LO’,5) FROM dual; will return ‘NHNMLODW’. …
SELECT REPLACE(‘NNNNNNN’,’Y’,5,3) FROM dual; the result will be ‘NNNNY’.