I have like 10 diff temporary tables created in SQL server, what I am looking to do is union them all to a final temporary table holding them all on one table. All the tables have only one row and look pretty much exactly like the two temp tables below.
Here is what I have so far this is an example of just two of the temp tables as their all exactly like this one then #final is the table I want to union the all to:
create table #lo
(
mnbr bigint
)
insert into #login (mnbr)
select distinct (_ID)
FROM [KDB].[am_LOGS].[dbo].[_LOG]
WHERE time >= '2012-7-26 9:00:00
Select count(*) as countreject
from #lo
create table #pffblo
(
mber_br
)
insert into #pffblo (mber_br)
select distinct (mber_br)
from individ ip with (nolock)
join memb mp with (nolock)
on( ip.i_id=mp.i_id and mp.p_type=101)
where ip.times >= '2012-9-26 11:00:00.000'
select count(*) as countaccept
create table #final
(
countreject bigint
, Countacceptbigint
.....
)
insert into #final (Countreject, Countaccept....more rows here...)
select Countreject, Countaccept, ...more rows selected from temp tables.
from #final
union
(select * from #lo)
union
(select * from #pffblo)
select *
from #final
drop table #lo
drop table #pffblo
drop table #final
if this the form to union the rows form those temp tables to this final one. Then is this correct way to show all those rows that were thus unioned. When I do this union I get message number of columns in union need to match number of columns selected in union
I think you're using a union the wrong way. A union is used when you have to datasets that are the same structure and you want to put them into one dataset.
e.g.:
CREATE TABLE #Table1
(
col1 BIGINT
)
CREATE TABLE #Table2
(
col1 BIGINT
)
--populate the temporary tables
CREATE TABLE #Final
(
col1 BIGINT
)
INSERT INTO #Final (col1)
SELECT *
FROM #Table1
UNION
SELECT *
FROM #Table2
drop table #table1
drop table #table2
drop table #Final
I think what you're trying to do is get 1 data set with the count of all your tables in it. Union won't do this.
The easiest way (although not very performant) would be to do select statements like the following:
CREATE TABLE #Table1
(
col1 BIGINT
)
CREATE TABLE #Table2
(
col1 BIGINT
)
--populate the temporary tables
CREATE TABLE #Final
(
col1 BIGINT,
col2 BIGINT
)
INSERT INTO #Final (col1, col2)
select (SELECT Count(*) FROM #Table1) as a, (SELECT Count(*) FROM #Table2) as b
select * From #Final
drop table #table1
drop table #table2
drop table #Final
It appears that you want to take the values from each of temp tables and then place then into a single row of data. This is basically a PIVOT, you can use something like this:
create table #final
(
countreject bigint
, Countaccept bigint
.....
)
insert into #final (Countreject, Countaccept....more rows here...)
select
from
(
select count(*) value, 'Countreject' col -- your UNION ALL's here
from #lo
union all
select count(*) value, 'countaccept' col
from #pffblo
) x
pivot
(
max(value)
for col in ([Countreject], [countaccept])
) p
Explanation:
You will create a subquery similar to this that will contain the COUNT for each of your individual temp table. There are two columns in the subquery, one column contains the count(*) from the table and the other column is the name of the alias:
select count(*) value, 'Countreject' col
from #lo
union all
select count(*) value, 'countaccept' col
from #pffblo
You then PIVOT these values to insert into your final temp table.
If you do not want to use PIVOT, then you can use a CASE statement with an aggregate function:
insert into #final (Countreject, Countaccept....more rows here...)
select max(case when col = 'Countreject' then value end) Countreject,
max(case when col = 'countaccept' then value end) countaccept
from
(
select count(*) value, 'Countreject' col -- your UNION ALL's here
from #lo
union all
select count(*) value, 'countaccept' col
from #pffblo
) x
Or you might be able to JOIN all of the temp tables similar to this, where you create a row_number() for the one record in the table and then you join the tables with the row_number():
insert into #final (Countreject, Countaccept....more rows here...)
select isnull(lo.Countreject, 0) Countreject,
isnull(pffblo.Countaccept, 0) Countaccept
from
(
select count(*) Countreject,
row_number() over(order by (SELECT 0)) rn
from #lo
) lo
left join
(
select count(*) Countaccept,
row_number() over(order by (SELECT 0)) rn
from #pffblo
) pffblo
on lo.rn = pffblo.rn
SELECT *
INTO #1
FROM TABLE2
UNION
SELECT *
FROM TABLE3
UNION
SELECT *
FROM TABLE4
If you would like to get count for each temporary table in the resulting table, you will need just to calculate it for each column in subquery:
INSERT INTO result (col1, col2,...
SELECT
(SELECT COUNT() FROM tbl1) col1
,(SELECT COUNT() FROM tbl2) col2
..
Related
I have a query where I need to run to do manual inserts
I can do it but there are many records and was looking if I can build something.
I have a structure somewhat like this:
Have 4 id of a table - primary key values as:
var ids = "1,2,3,4";
loop over ids {
insert into table1(col1,col2,col3)
select col1,newid(),getdate() from table1 where id = ids - 1 at a time
var selectedID = get the id of the inserted row and then insert into anotehr table as:
insert into table2(col1,col2,col3,col4)
select selectedID, getdate(),getdate(),4 from table2 where fkID = ids - one at a time
}
You can use both loops and cursors but often they can be avoided.
Is there a specific reason you note you want them inserted one at a time? An alternative would be to have the IDs staged, in a temp table, or CTE, e.g.
;WITH [Ids] AS
(
SELECT '1' AS [ID]
UNION
SELECT '2'
UNION
SELECT '3'
UNION
SELECT '4'
)
INSERT INTO [Table1]
(
[Col1],
[Col2],
[Col3]
)
SELECT [Col1],
NEWID(),
GETDATE()
FROM [Table1] T
INNER JOIN [Ids] I ON I.[ID] = T.[Id];
Which avoids the need for any loops, and should perform much better.
Edit
The way I would structure this, to make the query reusable would be as follows:
IF OBJECT_ID('tempdb..#IDS') IS NOT NULL
BEGIN
DROP TABLE #IDS
END
IF OBJECT_ID('tempdb..#Inserted_IDS') IS NOT NULL
BEGIN
DROP TABLE #Inserted_IDS
END
CREATE TABLE #IDS
(
ID INT
);
CREATE TABLE #Inserted_IDS
(
ID INT,
);
INSERT INTO #IDS
(
ID
)
SELECT 1 UNION
SELECT 2 UNION
SELECT 3 UNION
SELECT 4;
INSERT INTO [Table1]
(
[Col1],
[Col2],
[Col3]
)
OUTPUT Inserted.ID
INTO #Inserted_IDS
SELECT [Col1],
NEWID(),
GETDATE()
FROM [Table1] T
INNER JOIN #IDS I ON I.[ID] = T.[Id];
INSERT INTO [table2]
(
[col1],
[col2],
[col3],
[col4]
)
SELECT I.[ID],
getdate(),
getdate(),
4
FROM [#Inserted_IDS] I
DROP TABLE #IDS;
DROP TABLE #Inserted_IDS;
Therefore you only need to amend the IDs being entered into the temp table each time you need to do the inserts.
In mysql we write query as
create table new_table as (select a.* from Table1 a union select b.* from Table2 b)
This syntax doesn't work in SQL Server - what's the way around for creating a table from union in SQL Server?
in SQL Server, you can use SELECT .. INTO
select a.*
into new_table
from Table1 a
union
select b.*
from Table2 b
The following query should do what you want:
select * into new_table
from (
select * from Table1 union select * from Table2 ) a
You need to write your query as shown below for creating table in sql server using union clause.
create table #table1 (Id int, EmpName varchar(50))
insert into #table1 values (1, 'Suraj Kumar')
create table #table2 (Id int, EmpName varchar(50))
insert into #table2 values (2, 'Davinder Kumar')
SELECT * INTO #NewTable FROM
(SELECT Id, EmpName FROM #table1
UNION
SELECT Id, EmpName FROM #table2
)a
SELECT * FROM #NewTable
Here new table of name - #NewTable has been created by union of two tables #table1 and #table2
I want to add empty rows to results fetched from a select statement. For example, if the select query fetch 4 rows then 2 empty rows needs to be fetched. Objective should be the number of rows fetched should be 6 every time. The number of rows fetched will be 6 maximum if there are 6 rows with data.
Any idea?
In SQL-SERVER You can create temp table to update It with empty rows and you can use WHILE to insert desired number of rows with empty values. Something like:
-- Create temp table to update data with empty rows
CREATE TABLE #HoldEmptyRows
(
Id NVARCHAR(20),
CustomerName NVARCHAR(20),
CustomerEmail NVARCHAR(20)
)
-- Insert data from SourceTable to temp
INSERT INTO #HoldEmptyRows
SELECT * FROM SourceTable
-- Do while count from temp table < of desired number insert empty rows
WHILE ((SELECT COUNT(*) cnt FROM #HoldEmptyRows) < 6)
BEGIN
INSERT INTO #HoldEmptyRows VALUES ('', '', '')
END
SELECT * FROM #HoldEmptyRows
DEMO AT SQL FIDDLE
Try the below logic:
with cte as
(
select 0 as col1
union all
select col1+1 from cte where cte.col1<10
)
select * into #temp1 from cte
create table #test
(rownum int,col1 varchar(100))
declare #i int=1
while (#i<=6)
begin
insert into #test
select * from
(select row_Number() over (order by (Select 0))rownum, * from #temp1)x
where rownum=#i
Set #i=#i+1
end
select case when rownum>4 then '' else col1 end as col1 from #test
I have a simple SQL Query like:
Select Distinct GroupCode
Into #TempTable
From MyTable
SELECT * FROM #TempTable
drop Table #TempTable
And its OutPut is as
Now, I also want a Serial Number Column like 1,2,3.... there in the Out put.
How can I achieve that?
Thanks
Just add row_number():
select row_number() over (order by (select NULL)) as id, GroupCode
into #TempTable
from (select distinct GroupCode from MyTable) t;
select *
from #TempTable;
drop Table #TempTable;
You can explicitly create the temp table and add an IDENTITY column for your serial numbers, like so:
create table #tmp(id int identity(1,1), groupcode uniqueidentifier)
insert into #tmp (groupcode)
Select Distinct GroupCode
from mytable
select * from #tmp
order by id
drop table #tmp
I am trying to run a query given three tables.
DECLARE #TABLE1 TABLE (ID CHAR(2))
DECLARE #TABLE2 TABLE (ID CHAR(2))
DECLARE #TABLE3 TABLE (ID CHAR(2))
INSERT INTO #TABLE1 VALUES('1')
INSERT INTO #TABLE1 VALUES('2')
INSERT INTO #TABLE2 VALUES('1')
--NOTHING in TABLE3
I Need to get only the values that are present and ignore the null table. This doesn't work since TABLE3 has no values.
SELECT ID
FROM #TABLE1
INTERSECT
SELECT ID
FROM #TABLE2
INTERSECT
SELECT ID
FROM #TABLE3
**Result should be 1**
How do I ignore the any table if it's null but keep the other values?
Why not do a union of select distincts from each table, and then group that by ID and select count(*), and select only rows with count(*) equal to the maximum value of count(*) in the result?
It's a bit of a mess of subqueries at this point unfortunately but you should get the logic :)
Intersect is not going to work for you as you can't add conditions to it.
From what I understand you want to select all records where the ID appears in at least 2 of the tables. I am assuming that the ID is unique to each table.
The following works in MS SQL Server:
DECLARE #TABLE1 TABLE (ID CHAR(2))
DECLARE #TABLE2 TABLE (ID CHAR(2))
DECLARE #TABLE3 TABLE (ID CHAR(2))
INSERT INTO #TABLE1 VALUES('1')
INSERT INTO #TABLE1 VALUES('2')
INSERT INTO #TABLE2 VALUES('1')
--NOTHING in TABLE3
;WITH AllValues AS
(
SELECT ID
FROM #TABLE1
UNION ALL
SELECT ID
FROM #TABLE2
UNION ALL
SELECT ID
FROM #TABLE3
)
SELECT ID
FROM AllValues
GROUP BY ID
HAVING COUNT(*) > 1
Maybe... But the design of the system is extremely foreign; a real world example would help understand what you're trying to do.
Select count(*), ID FROM (
Select ID from #table1
UNION
Select ID from #table2
UNION
Select ID from #table3) Derived
Where RowNum =1
GROUP BY ID
ORder by count(*) DESC
Updated where clause was in wrong place