I have one column name phone_number in the database table.Right now the numbers stored in the table are format like ex.+91-852-9689568.I want to format it and just want only digits.
How can i do it in MySql ? I have tried it with using functions like REGEXP but it displays error like function does not exist.And i don't want to use multiple REPLACE.
One of the options is to use mySql substring. (As long as the format doesn't change)
SELECT concat(SUBSTRING(pNo,2,2), SUBSTRING(pNo,5,3), SUBSTRING(pNo,9,7));
if you want to format via projection only, use SELECT, you will only need to use replace twice and no problem with that.
SELECT REPLACE(REPLACE(columnNAme, '-', ''), '+', '')
FROM tableName
otherwise, if you want to update the value permanently, use UPDATE
UPDATE tableName
SET columnName = REPLACE(REPLACE(columnNAme, '-', ''), '+', '')
MySQL does not have a builtin function for pattern-matching and replace.
You'll be better off fetching the whole string back to your application, and then using a more flexible string-manipulation function on it. For instance, preg_replace() in PHP.
Try the following and comment please.
Select dbo.Regex('\d+',pNo);
Select dbo.Regex('[0-9]+',pNo);
Reference on RUBLAR.
So MYSQL is not like Oracle, hence you may just use a USer defined Function to get numbers. This could get you going.
Related
I store a serialized table in a Mysql column. The data looks like this:
a:2:{i:116;s:1:"4";i:113;s:1:"6";}
I'm trying to extract the number that's always placed before ;s:1:"6";
In the example above, the number would be 113.
I'm running Mysql 5.7, so I don't have access to new regex functions. It would have been nice to access PREG_CAPTURE and just write
PREG_CAPTURE(\'i:([0-9]+);s:1:"6";\', mycolumn, 1)
But I can't use PREG_CAPTURE and I'm stuck. Any idea?
Use substring_index.
Try this
SELECT SUBSTRING_INDEX( field1, ';s:1:"6";',1 )
Hello I have a table Gallery with a field url_immagine and I would like to use a query to replace all values that look like upload/gallery/311/ge_c1966615153f6b2fcf5d84c1e389eea8.jpg in /ge_c1966615153f6b2fcf5d84c1e389eea8.jpg
Unfortunately the a part of the string, the ID (331) is not always the same and therefore can not understand how ...
I tried the regular expression like this:
UPDATE gallery SET url_immagine = replace(url_immagine, 'upload/gallery/.*/', '/')
but it seem not to work.
Combine CONCAT and SUBSTRING_INDEX since you can use last index of "/"
UPDATE gallery
SET url_immagine = (SELECT CONCAT('/',SUBSTRING_INDEX(url_immagine, '/', -1)));
Try that to confirm it's doing what you want :
SELECT CONCAT('/',SUBSTRING_INDEX(url_immagine, '/', -1))
FROM gallery
You can see documentation for the replace function and all other string functions in the mysql manual:
https://dev.mysql.com/doc/refman/5.7/en/string-functions.html#function_replace
It does not mention that replace handles regular expressions, so we an assume it does not, and it is working verbatim and uses the your * to look for the char *.
You see also that there seem not to be a function that does the whole job for you. So you must somehow combine them. The idea of Mateo is probably the right direction.
In not a database guy but: I have mixed up data in a mySql database that I inherited.
Some Phone numbers are formatted (512) 555-1212 (call it dirty)
Others 5125551212 (Call it clean)
I need a sqlstamet that says
UPDATE table_name
SET Phone="clean'(Some sort of cleaning code - regex?)
WHERE Phone='Dirty'
Unfortunately there's no regex replace/update in MySQL. If it's just parentheses and dashes and spaces then some nested REPLACE calls will do the trick:
UPDATE table_name
SET Phone = REPLACE(REPLACE(REPLACE(REPLACE(Phone, '-', ''), ')', ''), '(', ''), ' ', '')
To my knowledge you can't run a regexp to replace data during the update process. Only during the SELECT statement.
Your best bet is to use a scripting language that you're familiar with and read the table and change it that way. Basically by retrieving all the entries. Then using a string replace to match a simple regexp such as [^\d]* and remove those characters. Then update the table with the new value.
Also, see this answer:
How to do a regular expression replace in MySQL?
Can someone give me an example of how to remove anything after a dash "-" in a zip code field using SQL commands?
For example, change any of this:
XXXXX-X
XXXXX-
XXXXX-XX
XXXXX-XXXX
to this:
XXXXX
Thanks for the examples. I also need to remove any instances of "-", "-X', "-XXXX", etc in the databases so the zip codes just contain five digits. Can someone include an example of this?
Given that your field is named zip , then just do this:
SELECT SUBSTRING_INDEX(zip, '-', 1) as zip
that would return what you want.
To update the data on the table you can do:
update table set zip = SUBSTRING_INDEX(zip, '-', 1) where condition = foo
that would update only records matching some condition, if you want to update them all remove the where part
Instead of using a regex, you could use MySQL's SUBSTRING_INDEX() method:
SELECT SUBSTRING_INDEX(zip_code, '-', 1) FROM your_table
EDIT (to support updates)
UPDATE your_table SET zip_code = SUBSTRING_INDEX(zip_code, '-', 1);
I'd recommend creating a second column, maybe zip_code_short and running SET zip_code_short = instead of overwriting the main data - just to make sure it doesn't cause any errors first (if feasible).
How can I search for "1-800-flowers" by "1800flowers" in MySQL?
I have the data "1-800-flowers", but I want to find it by "1800flowers".
You're probably best off creating a second column that you fill with 1800flowers (replacing all characters you want to ignore) and searching that. That way, you can make full use of indexing.
A quick way to convert all existing data would be
UPDATE table SET columnname_without_hyphens = REPLACE(columnname, "-", "");
If your problem is just ignoring hyphens, I may suggest using REPLACE to eliminate them, like this:
SELECT ... WHERE REPLACE(column, '-', '') ...
Otherwise, if you're looking for strings that "sound alike", you may want to have a look at the SOUNDEX function.
The use of the replace function will kill any ability to use an index on the column, but:
select *
from YourTable
where replace(YourColumn, '-', '') = '1800flowers'