How to get only Digits from String in mysql?

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I have some string output which contain alphanumeric value. I want to get only Digits from that string. how can I fetch this by query? which MySql function can I Use?

My query is like :

select DISTINCT SUBSTRING(referrerURL,71,6)   
from   hotshotsdblog1.annonymoustracking   
where  advertiserid = 10 
limit  10;

Output :

100683
101313
19924&
9072&h
12368&
5888&h
10308&
100664
1&hash
101104

And I Want output like :

100683
101313
19924
9072
12368
5888 
10308
100664
1
101104

If the string starts with a number, then contains non-numeric characters, you can use the CAST() function or convert it to a numeric implicitly by adding a 0:

SELECT CAST('1234abc' AS UNSIGNED); -- 1234
SELECT '1234abc'+0; -- 1234

To extract numbers out of an arbitrary string you could add a custom function like this:

DELIMITER $$

CREATE FUNCTION `ExtractNumber`(in_string VARCHAR(50)) 
RETURNS INT
NO SQL
BEGIN
    DECLARE ctrNumber VARCHAR(50);
    DECLARE finNumber VARCHAR(50) DEFAULT '';
    DECLARE sChar VARCHAR(1);
    DECLARE inti INTEGER DEFAULT 1;

    IF LENGTH(in_string) > 0 THEN
        WHILE(inti <= LENGTH(in_string)) DO
            SET sChar = SUBSTRING(in_string, inti, 1);
            SET ctrNumber = FIND_IN_SET(sChar, '0,1,2,3,4,5,6,7,8,9'); 
            IF ctrNumber > 0 THEN
                SET finNumber = CONCAT(finNumber, sChar);
            END IF;
            SET inti = inti + 1;
        END WHILE;
        RETURN CAST(finNumber AS UNSIGNED);
    ELSE
        RETURN 0;
    END IF;    
END$$

DELIMITER ;

Once the function is defined, you can use it in your query:

SELECT ExtractNumber("abc1234def") AS number; -- 1234

Get only digits using regexp in MySQL?, If you want to get only digits using REGEXP, use the following regular mysql> insert into OnlyDigits(UserId, UserName) values('123User1' with regex when you want exactly 10 digits in a string and all must be a number: MySQLMySQLi Database If you want to get only digits using REGEXP, use the following regular expression(^[0-9]*$) in where clause. Case 1 −If you want only those rows which have exactly 10 digits and all must be only digit, use the below regular expression.

Based on Eugene Yarmash Answer. Here is a version of the custom function that extracts a decimal with two decimal places. Good for price extraction.

DELIMITER $$

CREATE FUNCTION `ExtractDecimal`(in_string VARCHAR(255)) 
RETURNS decimal(15,2)
NO SQL
BEGIN
    DECLARE ctrNumber VARCHAR(255);
    DECLARE in_string_parsed VARCHAR(255);
    DECLARE digitsAndDotsNumber VARCHAR(255) DEFAULT '';
    DECLARE finalNumber VARCHAR(255) DEFAULT '';
    DECLARE sChar VARCHAR(1);
    DECLARE inti INTEGER DEFAULT 1;
    DECLARE digitSequenceStarted boolean DEFAULT false;
    DECLARE negativeNumber boolean DEFAULT false;

    -- FIX FIND_IN_SET cannot find a comma ","
    SET in_string_parsed = replace(in_string,',','.');

    IF LENGTH(in_string_parsed) > 0 THEN
        -- extract digits and dots
        WHILE(inti <= LENGTH(in_string_parsed)) DO
            SET sChar = SUBSTRING(in_string_parsed, inti, 1);
            SET ctrNumber = FIND_IN_SET(sChar, '0,1,2,3,4,5,6,7,8,9,.'); 
            IF ctrNumber > 0 AND (sChar != '.' OR LENGTH(digitsAndDotsNumber) > 0) THEN
                -- add first minus if needed
                IF digitSequenceStarted = false AND inti > 1 AND SUBSTRING(in_string_parsed, inti-1, 1) = '-' THEN
                    SET negativeNumber = true;
                END IF;

                SET digitSequenceStarted = true;
                SET digitsAndDotsNumber = CONCAT(digitsAndDotsNumber, sChar);
            ELSEIF digitSequenceStarted = true THEN
                SET inti = LENGTH(in_string_parsed);
            END IF;
            SET inti = inti + 1;
        END WHILE;

        -- remove dots from the end of number list
        SET inti = LENGTH(digitsAndDotsNumber);
        WHILE(inti > 0) DO
            IF(SUBSTRING(digitsAndDotsNumber, inti, 1) = '.') THEN
                SET digitsAndDotsNumber = SUBSTRING(digitsAndDotsNumber, 1, inti-1);
                SET inti = inti - 1;
            ELSE
                SET inti = 0;
            END IF;
        END WHILE;

        -- extract decimal
        SET inti = 1;
        WHILE(inti <= LENGTH(digitsAndDotsNumber)-3) DO
            SET sChar = SUBSTRING(digitsAndDotsNumber, inti, 1);
            SET ctrNumber = FIND_IN_SET(sChar, '0,1,2,3,4,5,6,7,8,9'); 
            IF ctrNumber > 0 THEN
                SET finalNumber = CONCAT(finalNumber, sChar);
            END IF;
            SET inti = inti + 1;
        END WHILE;

        SET finalNumber = CONCAT(finalNumber, RIGHT(digitsAndDotsNumber, 3));
        IF negativeNumber = true AND LENGTH(finalNumber) > 0 THEN
            SET finalNumber = CONCAT('-', finalNumber);
        END IF;

        IF LENGTH(finalNumber) = 0 THEN
            RETURN 0;
        END IF;

        RETURN CAST(finalNumber AS decimal(15,2));
    ELSE
        RETURN 0;
    END IF;    
END$$

DELIMITER ;

Tests:

select ExtractDecimal("1234"); -- 1234.00
select ExtractDecimal("12.34"); -- 12.34
select ExtractDecimal("1.234"); -- 1234.00
select ExtractDecimal("1,234"); -- 1234.00
select ExtractDecimal("1,111,234"); -- 11111234.00
select ExtractDecimal("11,112,34"); -- 11112.34
select ExtractDecimal("11,112,34 and 123123"); -- 11112.34
select ExtractDecimal("-1"); -- -1.00
select ExtractDecimal("hello. price is 123"); -- 123.00
select ExtractDecimal("123,45,-"); -- 123.45

Get ONLY the numbers out of a string? MySQL SQL Solutions , Find answers to Get ONLY the numbers out of a string? MySQL SQL from the expert community at Experts Exchange. I need get only that rows, which value in column pnum_s is exactly 10 symbol and all these symbols are only digits. what query must write for this? I am trying . SELECT * FROM mytable WHERE pnum_s REGEXP '^\d+$' But this not returns 0 rows

Try this in php

$string = '9072&h';
echo preg_replace("/[^0-9]/", '', $string);// output: 9072

or follow this link to do this in MySql Refer the link

Pattern Matching with Regular Expressions, Get MySQL Cookbook now with O'Reilly online learning. O'Reilly Nor can you match string content based on character types such as letters or digits. Unlike SQL pattern matches, which are successful only if the pattern matches the entire​  USE REGEXP for getting only numbers. SELECT * FROM your_table WHERE zipcode REGEXP '^[0-9]+$'; or . SELECT * FROM your_table WHERE zipcode > 0 Hope it will help expected output Your zipcode column contains. 123 145adb adds142 157 237 output will be. 123 157 237

Try, Query level,

 SELECT CAST('1&hash' AS UNSIGNED);

for PHP,

echo intval('13213&hash');

Extract Numbers from a String, I am wanting to write a function that returns the integer numbers only. Additionally​, I would repopulate the column with the integer data only and  How can I get only the numeric values from a string in MySQL? I need: 'abcde123456' -> '123456' '(test_123)' -> '123' '(ThisisText678)' -> '678' With a regex in perl this would be 1 line of code. But I need it inside a SELECT query. Thank you.

For any newcomers with a similar request this should be exactly what you need.

    select DISTINCT CONVERT(SUBSTRING(referrerURL,71,6), SIGNED) as `foo`
    from   hotshotsdblog1.annonymoustracking   
    where  advertiserid = 10 
    limit  10;

Numeric strings: VARCHAR fields holding numbers, Numeric strings are numbers that are stored in text columns. yield an error (e.g. PostgreSQL) many databases just add an implicit type conversion. SELECT . The following MySQL statement returns 5 numbers of characters from the 4th position of the column pub_name for those publishers who belong to the country ‘USA’ from the table publisher. Code: SELECT pub_name, SUBSTRING(pub_name,4,5) FROM publisher WHERE country='USA';

MySQL SUBSTRING() function, The following MySQL statement returns 3 numbers of characters from the 4th position of the string 'w3resource'. Code: SELECT SUBSTRING('  MySQL 5.7 Compare only numbers from a mixed VARCHAR column-1. How can I add values into MySQL if the value is either string or float?-5.

Extracting only numbers from data in mysql query, You can use the TRIM function, for example: mysql> SELECT TRIM(BOTH '_' FROM '_21_' ); 21. So in your case, to remove all _ characters,  string: Required. The string to extract from: start: Required. The start position. Can be both a positive or negative number. If it is a positive number, this function extracts from the beginning of the string. If it is a negative number, this function extracts from the end of the string: length: Optional. The number of characters to extract.

is_numeric - Manual, (PHP 4, PHP 5, PHP 7). is_numeric — Finds whether a variable is a number or a numeric string for strings, it return true only if float number has a dot is_numeric​( '42.1' )// //then using clear value of $d in the mysql query $sql = "select * from  JavaScript get string "-" using only these three symbols How to organize a lot of small pieces of work without creating a duplicate board/excel file (which has been banned)? Creating an irregular array for these rooftop tiles

Comments
  • Is &hash the only (partial) word messing the numbers?
  • Yes. &hash. but &hash is not in all string.
  • This function works great as long as the digits in the varchar do not go over the INTEGER limit of MySQL. If they do, you will get "out of range for column". To fix this, replace RETURNS INT with RETURNS VARCHAR(50) and DECLARE inti INTEGER DEFAULT 1 with DECLARE inti VARCHAR(50) DEFAULT 1