I need the hive syntax for this equivalent in ansi sql
insert into tablea
(id)
select id
from tableb
where id not in (select id from tablea)
so tablea contains no duplicates and only new ids from tableb are inserted.
Use left outer join with a filter that the tableA.id is null:
insert overwrite into tableA (id)
select b.id from tableB b left outer join tableA a
on a.id = b.id
where a.id is null
Related
I wrote a query with Left outer join in oracle.But I execute the query I get ORA-00904: "b"."GROSS_DISCOUNT_AMOUNT": invalid identifier error.TableB contains net_discount_number and gross_discount_amount columns.
select
a.GSMNO GSMNO,
a.NET_AMOUNT net,
a.GROSS_AMOUNT gross,
sum(b.net_discount_amount) net_discount, sum(b.gross_discount_amount) gross_discount,
a.code code, a.seq_no
from tableA a
LEFT OUTER JOIN
(select id, code, seq_no, sum(gross_amount) gross_amount, sum(net_discount_amount), sum(gross_discount_amount) from tableB
group by id, code, seq_no)
b ON a.id = b.id and NVL(a.code,b.code) = NVL(b.code,-99) and
NVL(a._seq_no,-99) = NVL(b.seq_no,-99)
and a.gross_amount = b.gross_amount
where a.tvNo like '123% and gsmno ='1111111111'
group by
a.GSMNO,
a.NET_AMOUNT,
a.GROSS_AMOUNT,
a.code, a.seq_no
You haven't specified aliases for aggregate sums, it should be like this:
select
a.GSMNO GSMNO,
a.NET_AMOUNT net,
a.GROSS_AMOUNT gross,
sum(b.net_discount_amount) net_discount, sum(b.gross_discount_amount) gross_discount,
a.code code, a.seq_no
from tableA a
LEFT OUTER JOIN
(select id, code, seq_no,
sum(gross_amount) gross_amount,
sum(net_discount_amount) net_discount_amount,
sum(gross_discount_amount) gross_discount_amount
from tableB
group by id, code, seq_no)
b ON a.id = b.id and NVL(a.code,b.code) = NVL(b.code,-99) and
NVL(a._seq_no,-99) = NVL(b.seq_no,-99)
and a.gross_amount = b.gross_amount
where a.tvNo like '123% and gsmno ='1111111111'
group by
a.GSMNO,
a.NET_AMOUNT,
a.GROSS_AMOUNT,
a.code, a.seq_no
I want to insert data into a column in the table.
Table a
ID col1 col2
1 A null
2 B null
Table b
ID col1
1 C
2 D
Expected results:
Table A
ID col1 col2
1 A C
2 B D
I tried this:
insert into tableA (col2)
select b.col1
from tableB b , tableA a
where b.id = a.id
and I received
0 row inserted.
How do I insert the col1 in B into col2 in A for the matching 'id' columns?
Thank you.
You must use Merge statement when inserting based on joins.
Also in table tableA col2 already exist but you want to insert a value on join then you must update that column.
merge into tablea a
using tableb b
on (b.id = a.id)
when matched
then
update set a.col2 = b.col1;
What you want to do shouldn't require a subquery. I'm not a huge fan of the table a, table b notation, try this:
update a
set col2 = b.col1
from tableB b
join tableA a
on a.id = b.id
select pmt.col1,table2.col1,table2.col3,table3.col1,table3.col1
from table2 inner join (select distinct
col1,col2 from table1) pmt on
table2.col1=pmt.col1 inner join table3 on
table3.col1=table1.col2 where table2.col2 is null;
Is there any way I can select pmt.col3(which is other column of table1) in this very query only.
Thanks very much
Simply select the column in a the sub query. Use for instance max for limiting the result set to one record:
select pmt.col1,
(select max(col3)
from table1 t1
where t1.col1 = pmt.col1
and t1.col2 = pmt.col2) col3,
table2.col1,
table2.col3,
table3.col1,
table3.col1
from table2
inner join (select distinct col1,col2
from table1) pmt
on table2.col1=pmt.col1
inner join table3
on table3.col1=table1.col2
where table2.col2 is null;
How do I join 3 tables with left outer join? I was able to do left outer join between table1 and table2, but not table3.
I tried the following, but don't know how to join with table3.
select tab1.id, tab2.status, tab3.job_history
from table1 tab1
left outer join table2 tab2 on tab1.id=tab2.id
where tab1.job_title='accounting'
My table schemas are:
table 1:
id number(5) primary key,
status_code number(5),
job_title varchar2(20)
name varchar2(30)
table 2:
status_code number(5) primary key,
status varchar2(15)
table 3:
id number(5)
job_history varchar2(20)
Conditions:
table1.status_code can be null
table1.id may be not have any match for table3.id
I want to find the record in table1 that has table1.job_title = 'accounting' or in table3 has table3.job_history = 'accounting' when table1.id = table3.id and also get the table2 status with table1.status_code = table2.status_code
I suspect you're wanting to join table2 to table1 on status_code instead of id, as there is no ID column in table2. To join the third table, just add another LEFT OUTER JOIN (or any other JOIN).
select
tab1.id,
tab2.status,
tab3.job_history
from
table1 tab1
left outer join
table2 tab2 on tab2.status_code = tab1.status_code
left outer join
table3 tab3 on tab3.id = tab1.id
where
tab1.job_title='accounting' or tab3.job_history = 'accounting'
Since you have not same fields on all tables, to match your conditions, you probably will find easier way to run join like:
select
tab1.id,
tab2.status,
tab3.job_history
from
table1 tab1,
table2 tab2,
table3 tab3
where
tab1.job_title='accounting'
--ADD ADITIONAL FILTERING HERE
Query with join on 3 tables is look like this:
select
tab1.id,
tab2.status,
tab3.job_history
from
table1 tab1
left outer join
table2 tab2 on tab1.id=tab2.id
left outer join
table3 tab3 on tab3.id = tab1.id
where
tab1.job_title='accounting'
This SQL assumes that there is a one-to-one relationship between table 1, table 2 and table 3
select tab1.id, tab2.status, tab3.job_history
from table1 tab1
left outer join table2 tab2 on tab2.status_code = tab1.status_code
left outer join table3 tab3 on tab3.id = tab1.id
where tab1.job_title = 'accounting' or tab3.job_history = 'accounting'
Table 3 looks like it contains some form of job history, so it is likely there is going to more than one record in Table 3 for each record on Table 1. If this is the case you will need to perform a sub-query to find all people that currently or previously have a job title of accounting, i.e.
select tab1.id, tab2.status, tab1.job_title
from table1 tab1
left outer join table2 tab2 on tab2.status_code = tab1.status_code
where tab1.job_title = 'accounting' or
tab1.id in (select id from tab3 where job_history = 'accounting')
I have two tables as: table1 with fields c1 and dt(nullable); table2 with fields start_dt, end_dt and wk_id. Now I need to perform left outer join between the table1 and table2 to take wk_id such that dt falls between start_dt and end_dt. I applied following condition but some wk_id which shouldn't be NULL are pulled NULL and some rows get repeated.
where nvl(t1.dt,'x') between nvl(t2.start_dt(+), 'x') and nvl(t2.end_dt(+), 'x');
What is wrong with the condition?
select *
from table1 t1
left join table2 t2
on t1.dt between t2.start_dt and t2.end_dt
I recommend you try the new ANSI join syntax.
Also, are you just using 'x' as an example? Or are the dt columns really stored as strings?
It seems you are missing the part "table1 left outer join table2 on table1.some_field = table2.some_field"
Something like this:
select t1.c1, t1.dt, t2.start_dt, t2.end_dt, t2.wk_id
from table1 t1 left outer join table2 t2
on t1.some_field1 = t2.some_field1
where nvl(t1.dt,'x')
between nvl(t2.start_dt, 'x') and
nvl(t2.end_dt, 'x')