I have tried to store the data but I am not getting the proper output.
for ($i=0; $i < count($_POST["service_product"]); $i++)
{
*This count is 3*
for ($a =0 ; $a < count($_POST["service_provider"]); $a++)
{
*This count is 4*
//insert query...
}
}
I'm getting this output:
1
2
4
10
1
2
4
10
1
2
4
10
This is the desired output:
1
2
4
10
because in
the first-row there are two select values.
the second-row there is only one select value.
and
the third row contains only one...
and so on...this is the image for reference so that you guys can understand well ..may be I have not explained well
Related
I have a table with 3 columns :
ID
productId
customerId
1
5
1
2
4
1
3
5
1
4
4
1
I want to add a new column called ID_MOD and its value by default will be ID%X (X is a number).
Expected result for X=3 :
ID
productId
customerId
ID_MOD
1
5
1
1
2
4
1
2
3
5
1
0
4
4
1
1
I have X instances of my app and I want each instance to query specific ID_MOD values(0/1/2.../X-1).
Is it possible to use default values for columns? If it is, can the default value be calculated based on other columns ?
what you can do is create a stored function that receives x as an input parameter, and extends your table with a calculated column (at query time).
For example:
.create-or-alter function FunctionName(x:int)
{
TableName
| extend ID_MOD = ID % x
}
If you decide x always has the same value and shouldn't be parameter, you can name the function using the same name as the table, and it will 'hide' the original table.
If the logic of calculating the extended column is well-defined in advance, you can invoke it at ingestion time, using an update policy
I am learning SQLite and I am currently posing the question whether there is a simple way of adding a sequential numbering to the output of a query. Underneath, I provide an example of what I am trying to achieve.
For instance, I have the following query:
SELECT
splTicker AS 'Ticker',
count(splTicker) AS '# of Splits'
FROM Splits
GROUP BY splTicker
ORDER BY count(splTicker) DESC, splTicker ASC;
The output of this query is as follows:
bash-3.2$ sqlite3 myShares < Queries/Split.sql
Ticker # of Splits
---------- -----------
AI.PA 7
ASML.AS 3
BN.PA 3
ALTR.LS 2
BOKA.AS 2
DG.PA 2
...
SON.LS 1
SU.PA 1
SW.PA 1
TEC.PA 1
UMI.BR 1
VIV.PA 1
VPK.AS 1
I am trying to add a sequential number to the rows to obtain the following output:
# Ticker # of Splits
-- ---------- -----------
1 AI.PA 7
2 ASML.AS 3
3 BN.PA 3
4 ALTR.LS 2
5 BOKA.AS 2
6 DG.PA 2
...
Currently, I use a workaround and add the row numbers post-query in Perl. I am posing the question whether I could do this directly in SQLite. The idea seems simple, but I have not found a solution yet. Any help would be appreciated.
Best regards,
GAM
Try this:
SELECT
(SELECT COUNT(*)
FROM Splits AS s2
WHERE s2.splTicker <= s1.splTicker) AS '#',
splTicker AS 'Ticker',
count(splTicker) AS '# of Splits'
FROM Splits s1
GROUP BY s1.splTicker
ORDER BY count(s1.splTicker) DESC, s1.splTicker ASC;
I've a table "mytable" like this:
MyTable
I would like to add the figures of each number with the condition that:
if the add is > 9 you subtract 9.
Ex. 13 = 1 + 3= 4
7 = 0 + 7 = 7 55= 5 + 5=10 - 9 = 1 27 = 9
Code:
select number%9 from mytable
But, in this case, for the value 27 return 0, not 9 (value correct).
Thanks in advance
You're using mod, so your result will be in the set [0...(x-1)], where x is your divisor. You want to shift your result set to be [1...x], but not shifting everything up one. Instead, you want the result to be the "normal" mod result unless that result is zero, in which case you want to return your divisor. To do this, we'll need a case statement...
SELECT
CASE WHEN (number % 9) = 0 THEN
9
ELSE
(number % 9)
END AS [field]
FROM
mytable
Still learning SQL :)
This time I'd like to a 'linked list' walk from a table I guess using CTE.
Despite all the example on the web I could not find one simple example I could start from then peek and poke from there.
Here is my table
create table yo (id integer, nx integer)
select * from yo
id nx
---------- ----------
1 5
2 4
3 7
4 9
5 3
6 0
7 0
8 6
9 8
I'd like to get a list of 'id','nx' from yo following the next link 'nx' given a start 'id'
So a start 'id' of 1 would produce
id nx
---------- ----------
1 5
3 7
5 3
7 0
Note that 0 is a end marker.
I can't find the magic SQL for doing this
Thanx in advance
Cheers,
Phi
The first row of the list is easy:
SELECT id, nx
FROM yo
WHERE id = 1
If the nx column of the previous entry is available as list.nx, the next entry can be returned with this query:
SELECT yo.id, yo.nx
FROM yo
JOIN list ON yo.id = list.nx
Then just plug these together:
WITH RECURSIVE list(id, nx) AS (
SELECT id, nx
FROM yo
WHERE id = 1
UNION ALL
SELECT yo.id, yo.nx
FROM yo
JOIN list ON yo.id = list.nx
)
SELECT * FROM list
(This stops automatically because there is no row where id is zero; otherwise, you could add a WHERE list.nx != 0.)
how can i generate 6 numbers between 1 and 2 where 4 of the numbers will be 1 and the other 2 will be 2 in a random order i.e.
results
1
2
1
1
1
2
and also in a different ratio i.e. 3:2:1 for numbers between 1 and 3 for 12 numbers
i.e.
results
1
1
2
3
1
2
1
3
1
1
3
3
results don't have to be in this order but in the ratios as above in oracle SQL or PL/SQL
To get the ratios perfect you could do something like this - generate all the numbers, then sort in random order:
SELECT r
FROM (SELECT CASE
WHEN ROWNUM <=4 THEN 1
ELSE 2
END AS r
FROM DUAL
CONNECT BY LEVEL <= 6)
ORDER BY DBMS_RANDOM.value;
R
----------------------
2
1
1
2
1
1
I think this will work in straight SQL; it's horrifically inefficient, and a PL/SQL one might be less so. It's also completely static; differing ratios call for a different number of values selected.
select value
from (
select mod(value, 2) + 1 as value,
row_number() over (partition by
case mod(value, 2) = 1
then 1
else 0
end) as twos_row,
row_number() over (partition by
case mod(value, 2) = 0
then 1
else 0
end) as ones_row
from (select dbms_crypto.randominteger as value
from dba_objects
order by object_id
)
)
where twos_rows <= 2
or ones_rows <= 4
The inner-most select grabs a big stack of random numbers. The next query out determines whether that random value would be a 2 or a 1 by mod'ing the earlier random value. The last level of nesting just filters out all the rows after the correct number of that type of row has been returned.
This is untested and fragile. If you need a solution that's reliable and performance, I'd recommend PL/SQL, where you
loop
pick off random numbers
determine what partition in your set of values they'd fit into
keep them if that partition hasn't been satisfied
exit when all partitions have been satisfied.