Thread: Here is my problem
Now i want to insert data to the table.... the format should be id | marks ---------- 1 |50 1 |30 1 |30 .... .... 2 |... .... the actual query is insert into table(id,marks) values(1,unnest(array[marks])) But we should not use array and unnest but i want in this format pls help.. -- View this message in context: http://postgresql.1045698.n5.nabble.com/Here-is-my-problem-tp5766954.html Sent from the PostgreSQL - general mailing list archive at Nabble.com.
Basavaraj wrote > i have two unrelated tables as their is no common column to apply joins or > anything, so i want to join those tables... I can understand being required to join them (for some unstated reason) but a simple want does not seem a strong enough reason to go through the pain... > ...using simple query... If you have to join these tables together the complexity of the resultant query should be irrelevant. Furthermore how one defines "simple" is quite subjective. > finally the result shoule be > > name| address|email|mobileNo|firstname|lastName| > -------------------------------------------------- > abc some1 mail1 1234564 def xyz > > 5 records | 10 records > > | > > Very thankful for solution............ I have no clue what you mean when you indicate "5 records | 10 records" in the final result. I'm tempted to ask you leading questions but instead am going to ask that you consider your goal more closely and be more explicit in your description/request. If you just want to go and play with it you can consider two possible options: SELECT * FROM tbl1 CROSS JOIN tbl2 --(this will return X times Y rows - or 10 times 5 = 50) or <not valid SQL, just an example> SELECT * FROM (SELECT row_number, * FROM tbl1) t1 FULL OUTER JOIN (SELECT row_number, * FROM tbl2) t2 USING (row_number) -- this will return 10 rows with 5 of them containing NULL values for t1 columns where t2 has row numbers not existing in t1. What you are doing, by the example given, is wrong. Proposing an alternative is impossible since you have not explained WHY you feel you need to do this or WHAT you are actually trying to accomplish. David J. -- View this message in context: http://postgresql.1045698.n5.nabble.com/Here-is-my-problem-tp5766954p5767617.html Sent from the PostgreSQL - general mailing list archive at Nabble.com.
i have two unrelated tables as their is no common column to apply joins or
anything, so i want to join those tables using simple query(only two tables
should be used and no common table) can you pls help me out how to do that.
I am new user to postgres
this is table format
table1 table2
name| address|email| mobileNo|firstname|lastName|
---------------------- ------------------------------
abc some1 mail1 1234564|def |
: :
: :
:
:
:5 records 10 records
finally the result shoule be
name| address|email|mobileNo|firstname|lastName|
--------------------------------------------------
abc some1 mail1 1234564 def xyz
5 records | 10 records
|
Very thankful for solution............
--
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On 8/16/2013 6:35 AM, Basavaraj wrote: > finally the result shoule be > > name| address|email|mobileNo|firstname|lastName| > -------------------------------------------------- > abc some1 mail1 1234564 def xyz > > 5 records | 10 records > > | First, a table is an unordered SET of tuples(rows). it only has an order when one is applied to it. so which rows of table 1 would go with what rows of table 2? Second, if that 2nd table has 10 records and the first table only has 5, what would those other 5 look like in your example? no answer I can think of makes sense. all rows of a recordset have to have the same fields. If this data is unrelated, then it does not belong together in a relation. -- john r pierce 37N 122W somewhere on the middle of the left coast
thanks for ur help,this was the requirement which assigned for us,so i had to ask even though we are having many options.....thanks again -- View this message in context: http://postgresql.1045698.n5.nabble.com/Here-is-my-problem-tp5766954p5767778.html Sent from the PostgreSQL - general mailing list archive at Nabble.com.
Ya i got the answer here is the code SELECT * FROM (SELECT row_number() over(), * FROM employee) t1 right outer JOIN (SELECT row_number() over(), * FROM managers) t2 on t1.row_number=t2.row_number Thank you -- View this message in context: http://postgresql.1045698.n5.nabble.com/Here-is-my-problem-tp5766954p5767787.html Sent from the PostgreSQL - general mailing list archive at Nabble.com.
Hi,
why do you connect one table with the other? They are't any
relations between them. So I don't understand your point, I am somewhat
confused, you can refer to the following site:
http://www.postgresql.org/docs/9.0/static/queries-table-expressions.html
http://my.oschina.net/Kenyon/blog/79543
> Ya i got the answer here is the code
>
>
> SELECT *
> FROM (SELECT row_number() over(), * FROM employee) t1
> right outer JOIN (SELECT row_number() over(), * FROM managers) t2 on
> t1.row_number=t2.row_number
>
>
>
> Thank you
>
>
>
> --
> View this message in context: http://postgresql.1045698.n5.nabble.com/Here-is-my-problem-tp5766954p5767787.html
> Sent from the PostgreSQL - general mailing list archive at Nabble.com.
>
>