Adding text to each column of MYSQL Database - mysql

I have a database table in MYSQL with around 1000 rows. In the table I have a column called 'overview'. In each row, this column has some value and at the end of that value I have a specific line (text) starting with: 'Source...'
Now what I want is, I want to remove this line from each column and replace it with some other text content.
I believe it can be accomplished with some smart query.


You can simply use REPLACE in your query like this
UPDATE your_table SET col_name = REPLACE(col_name , ‘Source...’, ‘new_val’)
WHERE col_name LIKE '%Source...';
Check Out the SQLFIDDLE.


MySQL database has a handy and simple string function REPLACE() that allows table data with the matching string (from_string) to be replaced by new string (to_string).
The syntax of REPLACE is:
REPLACE (text_string, from_string, to_string)
In your case, you can do this way:
UPDATE `tableName` SET `column` = REPLACE(column , 'Source...', 'Replaced Value')


Use Replace
update TBL
set overview = Replace(picture, 'Source..', 'replacement')
keep a backup of the table before anything.Or you can do it on a copy.


you can do this by following:
update table_name set col_name = replace(column_name , ‘Source...’, ‘Replaced String...’);

Related

Delete some characters from a column in MySQL

I have ONE column in MySQl table which contains this format:
https://open.spotify.com/track/AAABBBCCC
and I'd like to leave just AAABBBCCC, and not the entire column! The last parte is always the same.
Is that possible? Thanks and sorry for my english!

You can use SQL REPLACE function to do that.
UPDATE your_table_name
SET your_column_name = REPLACE(your_column_name, 'https://open.spotify.com/track/', '')
For more information you can read SQL statement to remove part of a string

Use REPLACE to delete the wanted text from your column:
UPDATE Table1 SET Column1 = REPLACE(Column1,'https://open.spotify.com/track/','')

SQL Query to concat a string in the database

I have a database table, with a column that contains integers. Each entry is a phone number, and they are all missing a zero at the beginning.
e.g. I have 798514586,
785558999
I want to run a SQL query that will modify each entry by putting a zero infront of it.
So the result will be
0798514586,
0785558999
IS there such a query to do this?

Try this
Syntax:
UPDATE <table> SET <column_to_update> = CONCAT(<string_to_concat>, <column_to_update>)
Example:
UPDATE contacts SET phone = CONCAT('0', phone)

I suppose you dont't want to add leading zero if it already exists:
update TableName
set SomeColumn = concat('0', SomeColumn)
where SomeColumn not like '0%'

It's not a good idea to store phone numbers as INTs, it's better to use a VARCHAR here. I would suggest you do add a new varchar column:
ALTER TABLE numbers ADD COLUMN phone_new VARCHAR(15);
then you can use an UPDATE query:
UPDATE numbers
SET
phone_new = CONCAT('0', phone)
MySQL will automatically cast the number to a string, and using CONCAT you can add a leading zero.

You can try by this:
update tableName set fieldName = CONCAT('0',fieldName)

You can use LPAD :
Update _table set _col = LPAD(_col , 10, '0');

Replace the text of whole column it contains specific string mysql

I have a question in mysql about searching the column in a table and if it contains specific string replace whole column with particular text.
Lets say If the column containing this textdata/variant_image/2/IW_HH_1B_sxph-2o_l7ar-4r_kh2k-fd.jpg has this string in itIW_HH_1B_ then replace it with data/variant_image/1/IW_HH_1B.jpg
I tried update,replace functions but it didnt work. And searching on google returns only replacing that particular string option. but not complete column text.

A simple update works:
UPDATE your_table
SET your_column = 'data/variant_image/1/IW_HH_1B.jpg'
WHERE your_column LIKE '%IW_HH_1B_%'

You can use a conditional update for that:
UPDATE tablename
SET columnname = 'data/variant_image/1/IW_HH_1B.jpg'
WHERE LOCATE('IW_HH_1B' COLLATE utf8_bin, columnname) > 0
If you want it to be case insensitive leaf the collate part out.

mySQL remove all text from record except keyword

I'm basically looking to remove all of the text from a record called FaxOutNumber except for where it contains no... it isn't consistent in the records, so sometimes its just NO! and other times its no#emailaddress.com.
I'd like:
FaxOutNumber:
5145555#emailaddress.com
no!#emailadrress.com
to change to:
FaxOutNumber:
[null]
no
I'd actually like to just turn this field into a simple BIT where the "No" becomes a "1" or true value as well.
Thanks in advance!

You can use a regular expression:
ALTER TABLE my_table ADD COLUMN isNoRecord BOOLEAN;
UPDATE my_table SET isNoRecord = FaxOutNumber RLIKE '^no(!?)(#.+)?$';
ALTER TABLE my_table DROP COLUMN FaxOutNumber;

You can try this--
UPDATE tableName SET FaxOutNumber = IF(FaxOutNumber RLIKE '^par',"",FaxOutNumber);

update replace command in mysql

All,
In a field named(path) in The table named is recn i have the follwoing data /home/user1/Computer-Science-10_1-10_7-17//html/Compu.html
how do i replace
/home/user1/Computer-Science-10_1-10_7-17//html/Compu.html with /home/user1/path/files/Computer-Science-10_1-10_7-17//html/Compu.html in mysql
Also There are many rows like /home/user1 which i have to replace with /home/user1/path/files
Thanks.....

Is this what you want?
UPDATE mytable SET mycolumn
= REPLACE(mycolumn, '/home/user1','/home/user1/path/files');