c# - How to group by and split columns dynamically with sql query? -

-



i have table contains rows below;

id date city     income 1  2013 kansas   10$ 1  2013 kansas   15$ 1  2014 kansas   30$ 2  2013 chicago  50$ ...

i need such query transform this;

id date city     income1 income2 1  2013 kansas   10$     15$ 1  2014 kansas   30$ 2  2013 chicago  50$ ...

so should group id, date split income values different columns.. how try achieve thing not right;

select id, date, min(city), concat(income,',') [sheet 1$] group id, date 

create table table1(id int, year int, city varchar(10), income int)   insert table1 values(1,  2013, 'kansas',   10) insert table1 values(1,  2013, 'kansas',   10) insert table1 values(1,  2013, 'kansas',   15) insert table1 values(1,  2014, 'kansas',  30) insert table1 values(2,  2013, 'chicago',  50)  select max(rn) maxcol from(         select *, row_number() over(partition id,year order id) rn         table1     )as tbl1   select *  (   select *, row_number() over(partition id,year order id) rn   table1 ) src pivot (   max(income)   rn in ([1], [2], [3]) ) piv;

actually dynamic sql option when number of income value(count) per year not fixed.

link live demo on sql fiddle





wiki

Comments

Post a Comment

Popular posts from this blog

python - Read npy file directly from S3 StreamingBody -

-
i have many .npy (numpy) , .json files saved in s3, need download , load these files. for json files downloading files , loading dictionary using following code: obj = s3.object(bucket, key) response = obj.get() body = response['body'].read().decode('utf-8') data = json.loads(body) that way avoid writing .json file disk , reading it. now want same .npy files, equivalent? currently downloading file, saving temp file on disk , loading np.load avoid if possible. following https://stackoverflow.com/a/28196540/3509999 : obj = s3.object(bucket, key) io.bytesio(obj.get()["body"].read()) f: # rewind file f.seek(0) arr = np.load(f) wiki
Read more

kotlin - Out-projected type in generic interface prohibits the use of metod with generic parameter -

-
i start using kotlin , defined interface this: interface aadapter<vh : recyclerview.viewholder> { fun oncreateaviewholder(parent: viewgroup): vh fun onbindaviewholder(v: vh, position: int) } and when try use on code: class klasa ( private val adapter: aadapter<*> ) { fun dosth(){ //... val vh = this.adapter.oncreateaviewholder(parent) //on below line error adapter.onbindaviewholder(v, position) //... } } i error out-projected type 'aadapter<*>' prohibits use of 'public abstract fun onbindaviewholder(v: t, position: int): unit i tied add "in" or "out" definition i'm confused. how allow it. replace aadapter<*> aadapter<recyclerview.viewholder> . class klasa ( private val adapter: aadapter<recyclerview.viewholder> ) { // ... because have declared aadapter has type parameter vh type subclass of recyclerview....
Read more

Asterisk AGI Python Script to Dialplan does not work -

-
i'm stuck project have check database of sip extension incoming caller id , dial sip extension. below receive when run script on asterisk cli. -- registered sip '9125' @ 192.168.1.102:50142 > saved useragent "zoiper rv2.8.40" peer 9125 [2017-08-22 13:53:33] notice[5095]: chan_sip.c:24558 handle_response_peerpoke: peer '9125' reachable. (17ms / 2000ms) == using sip rtp tos bits 184 == using sip rtp cos mark 5 -- executing [0112617769@from-trunk:1] answer("sip/obitrunk1-0000000d", "") in new stack > 0x1ca50d0 -- probation passed - setting rtp source address 192.168.1.98:16834 -- executing [0112617769@from-trunk:2] agi("sip/obitrunk1-0000000d", "test.py") in new stack -- launched agi script /var/lib/asterisk/agi-bin/test.py args: ['/var/lib/asterisk/agi-bin/test.py'] env line: agi_request: test.py env line: agi_channel: sip/obitrunk1-0000000d env line: agi_language: en env line: a...
Read more