i need to insert data into hive table from two different table counts.
example, let assume i have a table sample having fields counter1 and counter2
now i have another two tables test1 and test2.
i need to insert into sample.counter1 as select count(*) from test1 and sample.counter2 as select count(*) from test2
it works if final table is having one column like:
insert into table sample select count(*) from test1
now i need to insert two columns.
any suggestions?
Is this what you are looking for?
insert into sample.counter1 (counter1, counter2)
select t1.cnt, t2.cnt
from (select count(*) as cnt from test1) t1 cross join
(select count(*) as cnt from test2) t2;
I am trying to sum two values across a UNION. Like:
SELECT
sum(target_value) FROM table
UNION ALL
SELECT
sum(target_value) FROM table_2
But rather than getting the 2 sum values, I want them to also be summed.
How should I go about doing this?
You can try using this in a subquery and calculate at the outer query. Ensure you use UNION ALL to evade the duplicate check
SELECT SUM(a) target_value
FROM
(SELECT
sum(target_value) a FROM table
UNION ALL
SELECT
sum(target_value) a FROM table_2) ;
You can use the WITH clause to do this:
WITH CTE AS (SELECT SUM(target_value) as FirstSum
FROM table
UNION
SELECT
SUM(target_value) as FirstSum
FROM table_2)
SELECT SUM(FirstSum) AS TotalSum FROM CTE
Please see the example below:
create table #temp (x int)
create table #temp2 (x2 int)
insert into #temp values (2)
insert into #temp values (3)
insert into #temp2 values (5)
insert into #temp2 values (6)
select t.col1,t.col2,t.col1+t.col2 as Total
from (
SELECT (select sum(x) FROM #temp) as col1,
(select sum(x2) FROM #temp2) as col2
) t
I created Tables T1 and T2. I managed to add their sum, but I can't seem to add the sum of the T1 and T2 together (10+12 = 22) by adding a sum() in the beginning of the code.
CREATE TABLE T1(kW int)
CREATE TABLE T2(kW int)
SELECT T1C1, T2C1
FROM
( select SUM(Kw) T1C1 FROM T1 ) A
CROSS JOIN
( select SUM(Kw) T2C1 FROM T2 ) B
BEGIN
INSERT INTO T1 VALUES ('4');
INSERT INTO T1 VALUES ('1');
INSERT INTO T1 VALUES ('5');
INSERT INTO T2 VALUES ('7');
INSERT INTO T2 VALUES ('2');
INSERT INTO T2 VALUES ('3');
END
You should use union all to create a "virtual" column from the columns in the two tables:
SELECT SUM(kw)
FROM (SELECT kw FROM t1
UNION ALL
SELECT kw FROM t2) t
Try using a stored procedure. Doing so you will be able to store the sum of each table on a separated variable and then return the SUM of those two variables.
You can also make a UNION ALL and SUM the column you want. Notice that you should a UNION ALL to avoid eliminating duplicated values.
Another approach is to add the results of the two subqueries directly, using the built-in dummy table dual as the main driving table:
select ( select SUM(Kw) FROM T1 )
+ ( select SUM(Kw) FROM T2 ) as total
from dual;
TOTAL
----------
22
Does Big Query support operations like "REPLACE INSERT" or something related to that?
If I run a query like this twice:
INSERT INTO table(column1) VALUES(1)
It'll create a duplicated row, is it possible to insert a row only if a column with the same value does not exist?
Thanks!
Below should make it
#standardSQL
INSERT INTO yourTable(column1)
SELECT value FROM (SELECT 1 AS value)
LEFT JOIN yourTable
ON column1 = value
WHERE column1 IS NULL
Does this work for you?
INSERT INTO table(column1)
WITH s AS (SELECT 1 src)
SELECT src FROM s WHERE NOT EXISTS (
SELECT * FROM table t WHERE t.column1 = s.src
)
I'm trying to get maximum repeat of integer in table I tried many ways but could not make it work. The result I'm looking for is as:
"james";"108"
As this 108 when I concat of two fields loca+locb repeated two times but others did not I try below sqlfiddle link with sample table structure and the query I tried... sqlfiddle link
Query I tried is :
select * from (
select name,CONCAT(loca,locb),loca,locb
, row_number() over (partition by CONCAT(loca,locb) order by CONCAT(loca,locb) ) as att
from Table1
) tt
where att=1
please click here so you can see complete sample table and query I tried.
Edite: adding complete table structure and data:
CREATE TABLE Table1
(name varchar(50),loca int,locb int)
;
insert into Table1 values ('james',100,2);
insert into Table1 values ('james',100,3);
insert into Table1 values ('james',10,8);
insert into Table1 values ('james',10,8);
insert into Table1 values ('james',10,7);
insert into Table1 values ('james',10,6);
insert into Table1 values ('james',0,7);
insert into Table1 values ('james',10,0);
insert into Table1 values ('james',10);
insert into Table1 values ('james',10);
and what I'm looking for is to get (james,108) as that value is repeated two time in entire data, there is repetion of (james,10) but that have null value of loca so Zero value and Null value is to be ignored only those to be considered that have value in both(loca,locb).
SQL Fiddle
select distinct on (name) *
from (
select name, loca, locb, count(*) as total
from Table1
where loca is not null and locb is not null
group by 1,2,3
) s
order by name, total desc
WITH concat AS (
-- get concat values
SELECT name,concat(loca,locb) as merged
FROM table1 t1
WHERE t1.locb NOTNULL
AND t1.loca NOTNULL
), concat_count AS (
-- calculate count for concat values
SELECT name,merged,count(*) OVER (PARTITION BY name,merged) as merged_count
FROM concat
)
SELECT cc.name,cc.merged
FROM concat_count cc
WHERE cc.merged_count = (SELECT max(merged_count) FROM concat_count)
GROUP BY cc.name,cc.merged;
SqlFiddleDemo
select name,
newvalue
from (
select name,
CONCAT(loca,locb) newvalue,
COUNT(CONCAT(loca,locb)) as total,
row_number() over (order by COUNT(CONCAT(loca,locb)) desc) as att
from Table1
where loca is not null
and locb is not null
GROUP BY name, CONCAT(loca,locb)
) tt
where att=1