I'm having a problem with building a query.
What I have is this in THE db
--------------------------------------
Id |name | profilenr | nr
--------------------------------------
1 | Harry| admin-124 | NULL
2 | Barry| admin-267 | NULL
6 | gerry| user-689 | NULL
9 | larry| user-435 | NULL
What I want to do is:
Getting only the numbers from the profilenr column and put them in the nr column of each profile that starts whit admin- .
In this example only for harry 124 in colum nr
And for Barry only 267 in colum nr.
I know this is possible but don't know how to build the query for this.
May be more like this:
update my_table update
set nr = substr(profilenr, locate('-', profilenr)+1, 3)
where profilenr like 'admin-%';
You can use a substr and locate
update my_table
set nr = substr(profilenr, locate('-',profilenr)+1, 3);
Related
Here is my table:
| ID | NUMBER |
| 1 | 523 |
| 2 | 293 |
| 3 | 948 |
And now, I want to get all NUMBER values but I want to add in result two numbers - 48 - (without upadting existing results). So finally I want print these results:
| NUMBER |
| 48523 |
| 48293 |
| 48948 |
So I need a query, something like this:
SELECT '48' + `number` FROM `table`
but this query doesn't work fine (this query only update column name from NUMBER to 48 + NUMBER).
Any ideas?
Thanks.
You need CONCAT
SELECT CONCAT('48' , `number`) AS number FROM table
Demo
My table structure is as follows,
ID Name Source
1 John first.jpg
2 Doe second.jpg
3 Mary third.jpg
4 Kurian four.jpg
I would like to update the "Source" by prepending with the host and primary key as follows
http://example.com/1/first.jpg
http://example.com/2/second.jpg
http://example.com/3/third.jpg
http://example.com/4/four.jpg
tried with CONCAT("http://example.com/"+id,Source) but fails with Truncated incorrect DOUBLE value:
Any suggestion will be greatly apreciated.
Try
UPDATE table_name
SET Source = CONCAT('http://example.com/', ID, '/', Source);
Result
| ID | Name | Source |
|----|--------|---------------------------------|
| 1 | john | http://example.com/1/first.jpg |
| 2 | Doe | http://example.com/2/second.jpg |
| 3 | Mary | http://example.com/3/third.jpg |
| 4 | Kurian | http://example.com/4/fourth.jpg |
checkout this
SELECT CONCAT("http://example.com/" , CONCAT(ID , CONCAT("/" , Source))) FROM table_name;
or simply
SELECT CONCAT("http://example.com/" ,ID , "/" , Source) FROM table_name;
You can iterate in sql but the easiest way is to create a php script in which you create an array with the rows of the table
Then use the dot si tax to concat ID with the domain name and the source, something like:
$newval = ‘{$table[“ID”]}’ .“/Domainname.com/” . ’{$table[“Source”]}’;
Where $table is a variable storing the associative array of the table
And then make a new query in which you override the source column for each row in the table array
Please try below code:
UPDATE table_Name
SET Source = concat(concat(CONCAT('http://example.com/',ID),'/'),source);
Real Final edit (since it seems like people think is a null :P):
Let me rephrase it, since it is hard to explain and it seems no one can help me. I made 2 stored procedures in MySQL with phpMyAdmin. Both with an IN parameter VARCHAR(500) in utf8, var1.
With a value of 'novalue' for the In parameter these are the behaviours:
tableA:
------------------
a | b | example
------------------
1 | A | 1
2 | A | 1
3 | T | 1
SELECT * FROM tableA
WHERE (var1 = 'novalue')
SELECT * FROM tableA
WHERE (var1 = 'novalue' OR var1 = tableA.col1)
Expected output (Only first procedure will give me this result):
------------------
a | b | example
------------------
1 | A | 1
2 | A | 1
3 | T | 1
So my problem is, how to get the same expected output on the second procedure?
Thanks in advance
I have 2 table and there's a column which contains comma separated value and I want to count all same value of that column, here's the sample table:
Client table
ID | Name | Procedure
1 | Joe | Samp1,Samp2
2 | Doe | Samp1,Samp2,Samp3
3 | Noe | Samp1,Samp2
Desire Output
Summary table ( For Procedure )
ID | NAME | COUNT
1 | Samp1 | 3
2 | Samp2 | 3
3 | Samp3 | 1
Now, do you have any idea or suggestion so i can make it happen ? like add new table or is this possible with single query ?
Try this query
SELECT LENGTH(COLUMN) - LENGTH(REPLACE(COLUMN, ',', '')) FROM TABLE_NAME
Hey all, I am looking for a way to query my database table only once in order to add an item and also to check what last item count was so that i can use the next number.
strSQL = "SELECT * FROM productr"
After that code above, i add a few product values to a record like so:
ID | Product | Price | Description | Qty | DateSold | gcCode
--------------------------------------------------------------------------
5 | The Name 1 | 5.22 | Description 1 | 2 | 09/15/10 | na
6 | The Name 2 | 15.55 | Description 2 | 1 | 09/15/10 | 05648755
7 | The Name 3 | 1.10 | Description 3 | 1 | 09/15/10 | na
8 | The Name 4 | 0.24 | Description 4 | 21 | 09/15/10 | 658140
i need to count how many times it sees gcCode <> 'na' so that i can add a 1 so it will be unique. Currently i do not know how to do this without opening another database inside this one and doing something like this:
strSQL2 = "SELECT COUNT(gcCode) as gcCount FROM productr WHERE gcCode <> 'na'
But like i said above, i do not want to have to open another database query just to get a count.
Any help would be great! Thanks! :o)
There's no need to do everything in one query. If you're using InnoDB as a storage engine, you could wrap your COUNT query and your INSERT command in a single transaction to guarantee atomicity.
In addition, you should probably use NULL instead of na for fields with unknown or missing values.
They're two queries; one is a subset of the other which means getting what you want in a single query will be a hack I don't recommend:
SELECT p.*,
(SELECT COUNT(*)
FROM PRODUCTR
WHERE gccode != 'na') AS gcCount
FROM PRODUCTR p
This will return all the rows, as it did previously. But it will include an additional column, repeating the gcCount value for every row returned. It works, but it's redundant data...