I have a mysql database column named like telephoneNo
Telephone No
25645656
45454545
45565656
I want to prepend two digits XX to every value of telephoneNo column
Telephone No
xx25645656
xx45454545
xx45565656
I was trying to workout with concat but its not with integer values in my case please help with update query
You can use CAST() to convert your integers explicitely:
UPDATE t SET phone=CAST(CONCAT('10', phone) AS UNSIGNED)
That will work with integer prefixes. However, I don't see solid reason to store phone numbers as integers and not strings
That's a hack change your col to varchar or something.
UPDATE table SET telephoneNo=9200000000+telephoneNo;
EDIT:
This method requires that all your numbers are of the same length, and 8 digits long, if all your numbers are more or less than 8 digits modify the number of 0's after the 92 accordingly
If your telephone column is int, you can use concat string function to concat with int or string even like below
SELECT CONCAT(xx, telephone);
(OR)
SELECT CONCAT('xx', telephone);
(OR)
Explicitly cast your int column value
SELECT CONCAT('xx', CAST(telephone AS CHAR));
Related
In text file without commas I have the value of 12345.
The column of tableA (number1) is in type DECIMAL(5,1).I want insert the value 12345 in column but first I have to convert it to 1234.5
How to change it to decimal with and INSERT query like below:
INSERT INTO tableA (number1) VALUES (...)
I tried to use the CONVERT('12345',DECIMAL(5,1)) function but it becomes like this instead 12345.0.
"12345" will fit in DECIMAL(5,0) or DECIMAL(6,1) or DECIMAL(35,30) but it will overflow DECIMAL(5,1).
The first number is the total number of digits.
To treat 12345 as 1234.5, you must divide by 10 (or multiply by 0.1)
I am trying to clean the telephone numbers of a database so we can easily search for them. In the column TEL we have rows like:
654-598-5487
654.254.2456
(458)-5458789 e.3
I want to copy all those values to a new column where only the numeric characters are transferred:
6545985487
6542542456
45854587893
The new column (TEL_NO_FORMAT) is a big int and it only allows numbers, but if I execute something like this:
UPDATE CLIENTS set `TEL_NO_FORMAT` = `TEL`
It will only transfer the first numeric characters found and ignore the rest:
654
654
NULL
Easiest way is the REGEXP_REPLACE(MySQL 8.0+):
SELECT *, REGEXP_REPLACE(tel_no_format, '[^0-9]','') AS result
FROM clients
Answering the question in an update query
UPDATE CLIENTS SET TEL_NO_FORMAT = REGEXP_REPLACE(TEL, '[^0-9]','');
You should replace the undesired char before
UPDATE CLIENTS set `TEL_NO_FORMAT` = replace(replace(replace(`TEL`, '.',''),'-',''),')','')
because some char (eg '-') are create problem during conversion ..
anyway rember that a big int can't manage properly eventual tel number 0 prefixed eg:
00453778988
This happened when I was just testing.
I've created a table as
Create Table Test_Table
(
Field_char char(1)
);
When I want to insert value with code
Insert Into Test_Table(Field_char)
Select 13;
It inserts '*' in the column. For single digits it inserts them as it is. If the length is modified from 1 to 2, similar thing happen for 3 digits input such as 100 etc.
Why is this?
In your create statement you set the length of Field_char to 1 (char(1)). This means that your entries must have a length smaller or equal to 1. valid entries are 1,2 etc. Invalid entries are 12, 13 as they are longer than 1 char -> * is a placeholder to indicate invalid values.
EDIT: (Thanks To Vladimir)
To be more precise take a look here.
Truncating and Rounding Results
[...] Conversions to char, varchar, nchar, nvarchar, binary, and varbinary are truncated, except for the conversions shown in the following table.
There we have the following entry:
From data type int to data type char result *
where * = Result length too short to display
When you are writing
Insert Into Test_Table(Field_char)
Select 13;
The it is converting int to char. So your 13 is converted into *. If you want you can check by writing
select CONVERT(char(1),13)
If you want to see the result as 13 then you need to put that in single inverted comma like this:
Insert Into Test_Table(Field_char)
Select '13';
And also you need to increase the size of column as char(1) can hold only one character.
SQL FIDDLE DEMO
It simply Convert Int to Char
for Example
select CONVERT(char(1),13)
it will give *
Sql Implicitly convert int to char which is you column type..
I have a table:
CREATE TABLE `ids` (
id int(11) not null auto_increment,
PRIMARY KEY (id)
);
It contains some IDs: 111, 112, 113, 114 etc.
I made a query:
SELECT * FROM `ids` WHERE id = '112abcdefg'
I expected nothing but I've got a result, a row with ID of 112. Seems that MySQL quietly converted my string to integer and then compared it against column values.
How can I change the query so that querying the same string from id column will give no results as I expect? Is there a strict comparison modifier in MySQL?
One option is to CAST the 112 to CHAR to get a proper match:
WHERE CAST(id AS CHAR(12)) = '112abcdefg'
The 12 in CHAR is a guess; it should be large enough for your biggest id.
That will probably kill any chance of optimization, so another option (though one I'm not 100% sure of) is to use a BINARY comparison. I've tried this with a few different values and it works:
WHERE BINARY id = '112abcdefg'
You are comparing a string, just put the number with no quotes:
SELECT * FROM `ids` WHERE id = 112
If you dont, it will convert the string '112abcdefg' to a number and say its 112
The response you are seeing is because you are trying to compare an integer column to a string value. In that case, MySQL will type-cast the string literal value to an integer, and when it does that it starts from the left of the string and as soon as it reaches a character that cannot be considered part of a number, it strips out everything from that point on. So trying to compare "256abcd" to an integer column will result in actually comparing the number 256.
So your options (or at least a few of them) would be:
Validate the input string in your application code and reject it if it's not an integer (see the ctype_digit function in PHP).
Change the column type for the filename if you want to treat it as a string (e.g. a VARCHAR type).
Cast the column value to a string:
. . . WHERE CAST(Id AS CHAR) = '256aei'
Source
you can use this :
SET sql_mode = STRICT_TRANS_TABLES;
this sets you sql mode to strict checking, and then try firing the query you mentioned.
lame + kills optimization but serves it purpose
SELECT * FROM `ids` WHERE concat(id) = '112abcdefg';
that way you enforce casting to string
http://dev.mysql.com/doc/refman/5.1/en/type-conversion.html
I am using MySQL database.
I have one table having column with datatype binary(16).
I need help with the insert statement for this table.
Example:
CREATE TABLE `assignedresource` (
`distid` binary(16) NOT NULL
)
insert into assignedresource values ('9fad5e9e-efdf-b449');
Error : Lookup Error - MySQL Database Error: Data too long for column 'distid' at row 1
How to resolve this issue?
You should remove the hyphens to make the value match the length of the field...
Example:
CREATE TABLE `assignedresource` (
`distid` binary(16) NOT NULL
)
insert into assignedresource values ('9fad5e9eefdfb449');
Also, MySQL standard is to use this notation to denote the string as binary... X'9fad5e9eefdfb449', i.e.
insert into assignedresource values (X'9fad5e9eefdfb449');
Well, assuming that you want to strictly insert a hexadecimal string, first you need to remove the dashes and then "unhex" your string before inserting it into a binary(16) data type column, the code would go like this:
INSERT INTO `assignedresource` VALUES(UNHEX(REPLACE('9fad5e9e-efdf-b449','-','')));
Also... the "usable" data you are inserting is actually 8 bytes after undashing it, so binary(8) would do fine if you plan on not storing the dashes.
You can strip the hyphens and perpend 0x to the value unquoted, like this:
insert into assignedresource values (0x9fad5e9eefdfb449);
As well as, as this (mentioned in other answers):
insert into assignedresource values (X'9fad5e9eefdfb449');
Both are valid notation for a hexadecimal literal.
Your string is 18 char long, change the database
CREATE TABLE `assignedresource` (
`distid` binary(18) NOT NULL
)