UPDATE `ps_product_lang`
SET
`description` = REPLACE(`description`, '<li><p>', '<li>')
Above code is not processing and says 0 Rows affected, however, the following code is working with some rows affected:
UPDATE `ps_product_lang`
SET
`description` = REPLACE(`description`, 'lip', 'li')
How do I process the previous code? I want to replace exactly <li><p>
You're question is similar to this. You may take a look at it:
Update a column value, replacing part of a string
I think you may want to add the LIKE and WHERE clause in your UPDATE query. Something like this: UPDATE yourtable
SET url = REPLACE(url, 'http://domain1.com/images/', 'http://domain2.com/otherfolder/')
WHERE url LIKE ('http://domain1.com/images/%');
Please ensure the description value doesn't be encoded by any encoding.
Or you can try to replace < with < and replace > with >
Below query working fine for me.
UPDATE s_demo SET description = REPLACE(description,'<li><p>','<b>222<b>') WHERE id = 1
I think one thing need to check description field Collation type. In my case i used Collation = utf8_general_ci
I hope, this is to help you
Related
I need to update a bunch of records in my database that store a slug in an article table. I mistakenly set the slugs to end in "-html" rather than ".html" and I need a query that will fix this.
I don't really understand how to use variables, so I'm hoping someone here can help.
Would someone please write for me a SQL query that's something like:
UPDATE table
SET table.slug = '%.html%'
WHERE table.slug LIKE '%-html%'
Obviously, that's not correct, but I don't know the correct way to write it.
Here's a quick-and-dirty example using REPLACE()
UPDATE table
SET slug = REPLACE(slug, '-html', '.html')
WHERE slug LIKE '%-html'
Just be warned that this will replace any occurrence of -html, even if it's not at the end of the string.
A more comprehensive approach might be
UPDATE table
SET slug = CONCAT(TRIM(TRAILING '-html' FROM slug), '.html')
WHERE slug LIKE '%-html'
Mine will only replace the last '-html', and append '.html'by CONCAT:
UPDATE table
SET slug = CONCAT(SUBSTRING(slug, 1, LENGTH(slug) - 5), '.html')
WHERE slug LIKE '%-html'
You have to make use of replace command.
UPDATE Table Tablename
SET MyColumnname = REPLACE(MyColumnname, '-html', '.html')
WHERE MyColumnname LIKE '%-html%'
I'd make use the the TRIM and CONCAT functions:
Something like this:
UPDATE `table` t
SET t.slug = CONCAT(TRIM(TRAILING '-html' FROM t.slug),'.html')
WHERE t.slug LIKE '%-html'
Note that the TRIM(TRAILING '-html' will remove all occurrences of that specified string from the end of the column value, so if I had (for example) a column value of 'foo-html-bar-html-html', that would return 'foo-html-bar'.
I use the CONCAT function to append '.html'.
The WHERE clause guarantees that I will only be modifying rows that have a column value ending in '-html'.
http://dev.mysql.com/doc/refman/5.5/en/string-functions.html
I have a column called code and in every row, the column contains FE. Because I do not want to go through 13,000 records, is there a quick way to replace FE inside 'code' with FEU?
While I appreciate this may be a simple question (or not?), I wasn't sure how to word it in order to find a solution.
You should be able to do like this:
UPDATE <table> SET code = REPLACE(code, 'FE', 'FEU');
If the column really just contains the value FE a simple WHERE clause should be enough:
UPDATE <table> SET code = 'FEU' WHERE code = 'FE';
Maybe something like this?
UPDATE yourtable
SET code = 'FEU'
WHERE code = 'FE'
This will work if your column contains only the string 'FE' and you want to replace it with 'FEU'.
update `table`
set `code` = replace(`code` , "FE","FEU")
where (if there is a where write it here)
should do you
This is probably the quickest way. You can try this:-
UPDATE yourtable
SET code = 'FEU'
WHERE code = 'FE'
I have a table in my Mysql db (utf-8). I want to get exact word matches from this table.
My query is:
SELECT matched_rows FROM MY_TABLE WHERE string = 'MY_STRING'
Problem is when I search for 'ağaç' (tree in English) I got all rows with ağaç, agac, ağac, agaç.
what I want to get is only 'ağaç' not the rest. I also don't want results with something agac.
How do I get this effect?
i followed #gintas answer and made some modifications. in the end this one worked for me:
SELECT ROWS FROM MY_TABLE WHERE CONVERT(string_field_name USING latin5) = CONVERT('MY_STRING' USING latin5)
You should try defining collation in the query
SELECT matched_rows FROM MY_TABLE WHERE string = 'MY_STRING' COLLATE utf8_general_ci
SELECT * FROM users WHERE email REGEXP '[[:<:]]abhi[[:>:]]'
try this link on SO i think you didnt try this?
LINK: url
I have in my db strings like www.domain.com and http://www.domain.com. I want to prepend to all entries the http:// but not affect other urls and as a result have this: http://http://www.domain.com
Can this be done with mysql only? I have used REPLACE(field,'www','http://www'), but this replaces also the http://www with http://http://www
Thanks in advance
EDIT
I forgot to mention that in the field there might be entries which don't contain www or http://www and therefore I don't want to alter or maybe there are entries like <p>domain</p> in which CONCAT() prepends the http:// before <p>
Try adding a WHERE clause to your update to only update fields that do not already have 'http://'. Test it out like this
SELECT CONCAT('http://', field) FROM foo WHERE LOCATE('http://', field)=0
and your UPDATE syntax would be:
UPDATE foo SET field=CONCAT('http://',field) WHERE LOCATE('http://', field)=0
I won't worry about performance as this seems like a one-off kind of script. That said, you can couple LEFT and CONCAT to achieve this:
UPDATE mytable
SET mycolumn = CONCAT('http://',mycolumn)
WHERE LEFT(mycolumn,7) <> 'http://'
Do note that I'm not taking CapItaliZation in to account. You may also want to consider sanitizing the information either before adding it to the database, or maybe make a trigger to do it for you.
Search and Replace Query - mysql replace
Here is the SQL query to replace string in your MySQL database table:
UPDATE table_name SET column_name = REPLACE(column_name,'original_string','replace_string')
Here is what I did to change the path URLs in all my previous posts.
UPDATE `wp_posts` SET `post_content` = REPLACE(`post_content`,'http://localhost/','https://sureshkamal1.wordpress.com/')
UPDATE profile SET
favourties=CONCAT(favourties,"123")
WHERE id=1
i want to append 123 in favourties but if default value of favourties is set to NULL then this query will not work. What will be query if favourties is set to NULL and then append 123 with it
UPDATE profile SET favourties=CONCAT(IFNULL(favourties, ''),"123") WHERE id=1
Wrap the field around with the COALESCE function:
UPDATE profile
SET favourties = CONCAT(COALESCE(favourties, ''),"123")
WHERE id=1
You probably can't concatenate something to NULL. Maybe you can use coalesce?
UPDATE profile SET favourties=CONCAT(COALESCE(favourites,""),"123") WHERE id=1
see: http://dev.mysql.com/doc/refman/5.0/en/comparison-operators.html#function_coalesce
You can use ifnull like #zerkms says, but that is not in the SQL standard. It is a tiny tad faster though. Read up on it at this link: http://sqlblog.com/blogs/adam_machanic/archive/2006/07/12/performance-isnull-vs-coalesce.aspx
You can also use CONCAT_WS() (docs) which deals with NULLs as you would expect: converts them to an empty string:
UPDATE profile SET favourties = CONCAT_WS('', favourties, "123") WHERE id = 1;
I personally actually only use CONCAT_WS() now because having to worry about NULLs annoys me. I rarely use NULLs so I don't have to worry about it, but just incase. It's just an annoying thing to figure out why you you're ending up with an empty string when it just doesn't seem to make sense.
In PHP, I use:
SET `trans`=concat('$var', trans)
to add to a string already in the trans column.
It wouldn't work on column named group without using back ticked group inside the brackets as well, whereas with trans, back ticks were not needed.