I need of add character after a value sql field in auto mode. Example i have numeryc type fields 01 and i wanna add after the number PC so trasform the value in 01PC.
help me?
This query add the letter A at the end of field1
select concat(field1, 'A') from table1
And if you wanna update the table you can do..
update table1 SET field1 = concat(field1, 'A')
The last query add letter A at the end of all field1
Use the convert sql function like so
select concat(convert(nvarchar([length]), field1), 'pc') from table1
Related
In a SQL table I have two columns: the first contain a path and the second contains a value.
colunm1
/path/
colunm2
12345
I need to update the first column with the value that exists in the second column. to get this result :
colunm1
/path/12456/
I tried this, but not working
update tablename p
set p.colunm1 = "/path/'colunm2'/"
You have the right idea, but the SQL you shared uses column2 as a string literal. You could use the concat to concatenate the two columns:
UPDATE tablename
SET column1 = CONCAT(column1, column2)
You have to use CONCAT
update tablename p
set p.colunm1 = CONCAT("/path/",`colunm2`,"/");
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');
Im trying to update a field only if the field contains certain characters j,k,l,m,n,o,p,q,r
I want to avoid using update tbl set field = field2 where field like '%j' or field like '%k' ...etc.
Is there some syntax to create a list of the characters I am looking for?
Try this in MySQL:
update tbl set field = field2 where field REGEXP 'j|k|l|m|n|o|p|q|r';
You can use regular expressions with the RegExp keywork.
I need to make a update query that can allow me to update in trimming leading '0' in a particular column. I know I can write a select query like this to select trimmed value below:
SELECT TRIM(LEADING '0' FROM SkuCode) FROM MyTable WHERE Id=1;
But how can implement this is in update query. Please help me.
if the column is a text or varchar type try
UPDATE MyTable set SkuCode = SUBSTRING(SkuCode,2) WHERE Id = 1
If this SELECT statement is returning the value you want to assign to the skucode column:
SELECT t.skucode AS current_skucode
, TRIM(LEADING '0' FROM t.skucode) AS proposed_skucode
FROM MyTable t
WHERE t.id=1 ;
Then you can convert that into an UPDATE statement, by replacing SELECT ... FROM with UPDATE, and adding a SET clause before the WHERE clause, to assign the expression that returns the proposed value for sku code to the sku code column, e.g.
UPDATE MyTable t
SET t.skucode = TRIM(LEADING '0' FROM t.skucode)
WHERE t.id=1 ;
I need a SQL update statement for updating a particular field of all the rows with a string "test" to be added in the front of the existing value.
For example, if the existing value is "try" it should become "testtry".
You can use the CONCAT function to do that:
UPDATE tbl SET col=CONCAT('test',col);
If you want to get cleverer and only update columns which don't already have test prepended, try
UPDATE tbl SET col=CONCAT('test',col)
WHERE col NOT LIKE 'test%';
UPDATE tablename SET fieldname = CONCAT("test", fieldname) [WHERE ...]
Many string update functions in MySQL seems to be working like this:
If one argument is null, then concatenation or other functions return null too.
So, to update a field with null value, first set it to a non-null value, such as ''
For example:
update table set field='' where field is null;
update table set field=concat(field,' append');
That's a simple one
UPDATE YourTable SET YourColumn = CONCAT('prependedString', YourColumn);
UPDATE table_name SET Column1 = CONCAT('newtring', table_name.Column1) where 1
UPDATE table_name SET Column1 = CONCAT('newtring', table_name.Column2) where 1
UPDATE table_name SET Column1 = CONCAT('newtring', table_name.Column2, 'newtring2') where 1
We can concat same column or also other column of the table.