I am using SQL Server
The data that I have is:
table1:
R_Time ID Q1
2012-02-26 14 8
2012-02-27 14 7
2012-02-27 15 8
2012-02-27 16 9
2012-02-27 11 10
2012-02-28 11 6
2012-02-28 14 10
2012-02-28 15 9
and
table2:
ID Supervisor
11 2
14 2
15 3
16 3
What i am trying to due is only show R_Time and Q1 Entries from table1 where table2 Supervisor is 3
I know I will somehow have to do a join but im not quite sure how to.
Thanks.
Description
You can use a inner join to get this done.
T-SQL INNER JOIN operator can be used in any FROM clause to combine records from two tables.
Sample
Select tbl1.R_Time, tbl1.Q1 from table1 tbl1
inner join table2 tbl2 on tbl2.Id = tbl1.Id
where tbl2.Supervisor = 3
More Information
T-SQL - Inner Join
hope it helps!
select t2.time
from table1 t1
inner join table2 t2
on t1.Id = t2.Id
where t2.Supervisor = 3
Yup, you need to do an inner join:
select
a.r_time, a.q1
from
table1 a (nolock)
inner join table2 b (nolock) on b.id = a.id
where
b.supervisor = 3
Related
I'm not sure how to explain what I need but here's the data first:
Table 1
District
-1
3
2
1
3
Table 2
ID ID_Name
1 Main 1
2 Main 2
3 Main 3
How do I join the tables so that it looks like this?
District
-1
Main 3
Main 2
Main 1
Main 3
I'm assuming the second column is named Name for this, but you can do it with a COALESCE and a LEFT JOIN:
Select Coalesce(T2.Name, Str(T1.District)) As District
From Table1 T1
Left Join Table2 T2 On T1.District = T2.Id
assuming table 2 have
Table 2
ID col2
1 Main 1
2 Main 2
3 Main 3
you could use a left join
select table1.Distric, table2.col2
from table1
left join table2 on table1.dictrict = t2.ID
order by table2 col2
You can use left join:
Select coalesce(t2.col, t1.District) from table1 t1
left join table2 t2 on t1.District = t2.Id
I am having an issue with a query I am trying to write. Unfortunately I can only query against the database and cannot change the schema. Here are some simplified example tables:
Table 1
itemID sale date
----------------------------
1 1/2015
1 3/2016
2 5/2016
2 1/2015
Table 2
itemID colorID price
--------------------------------------
1 1 23
1 2 10
1 3 13
2 1 11
2 2 14
2 3 18
Table 3
ColorID color
---------------------------------------
1 Red
2 Blue
3 Green
Table 4
SaleBegin SaleEnd ColorID
----------------------------------------
1/1/2014 12/31/2014 1
1/1/2015 12/31/2015 2
1/1/2016 12/31/2016 3
Now I need a query that essentially gets the price and color for both item ids in the first table. I'm not sure how to do it with this schema even just for one. I tried something like:
SELECT item_id, price, color FROM Table1 T1
INNER JOIN Table2 T2
ON T1.ItemID=T2.ItemID
INNER JOIN Table3 T3
ON T2.ColorID=T3.ColorID
INNER JOIN Table4 T4
ON T3.ColorID=T4.ColorID
WHERE T1.itemID between SaleBegin AND SaleEnd
But it's not working for me, instead giving me every possible color and price for each item. What am I doing wrong? How do I get those values? Expected results should look like:
itemID color price
------------------------------------
1 Blue 10
1 Green 13
2 Green 18
2 Blue 14
http://sqlfiddle.com/#!9/e6fac/4
SELECT t1.itemID
, t3.color
, t2.price
FROM table_1 t1
LEFT JOIN table_2 t2
ON t1.itemID = t2.itemID
LEFT JOIN table_3 t3
ON t2.colorID = t3.colorID
LEFT JOIN table_4 t4
ON t3.colorID = t4.colorID
WHERE t1.sale_date BETWEEN saleBegin and saleEnd;
I'm not sure this is what you're looking for, but this query will give you the itemID, color and price for each product during each sale
SELECT
t4.SaleBegin
,t4.SaleEnd
,t1.itemID
,t3.color
,t2.price
FROM Table4 t4
INNER JOIN Table1 t1
ON t4.SaleBegin = CAST(REPLACE(t1.[sale date], '/', '/1/') AS DATE)
INNER JOIN Table2 t2
ON t1.itemID = t2.itemID
AND t4.ColorID = t2.ColorID
INNER JOIN Table3 t3
ON t4.ColorID = t3.colorID
Here is the SQL Fiddle
Edit : I did a mistake the Invoices Table carry the transactionId
I have 3 tables :
Transactions Reconciliations Invoices
id num line transId id Code transId
-- --- ---- ------- -- ---- -------------
3 1 1 3 5 Code 5 3
6 1 2 6 9 Code 9 8
7 1 3 7 12 Code 12 11
8 2 1 8
12 2 2 12
10 3 1 10
11 3 2 11
and this Query :
select
t1.id -- transaction id
t2.num -- reconciliation number
t3.Code -- Invoice code
from Transactions t1
left outer join Reconciliations t2 on t2.transId = t1.id
left outer join Invoices t3 on t3.transId = t1.id
Giving the following result :
id num code
-- --- ----
3 1 Code 5
6 1 null
7 1 null
8 2 Code 9
12 2 null
10 3 null
11 3 Code 12
But what I want is this :
id num code
-- --- ----
3 1 Code 5
6 1 Code 5
7 1 Code 5
8 2 Code 9
12 2 Code 9
10 3 Code 12
11 3 Code 12
To put words on it when the linked Invoice table gives null I want to join on all the records from Reconciliations with the same Reconciliation number.
Edit : I would like the Code in invoices to be shared across all transactions that shares the same Reconciliation number
I have tried to do thru outer apply and sub query but I cannot figure out a way to achieve it. Have you any idea ?
The solution is to join to Reconciliations again before joining to Invoices:
select t.id, r.num, i.Code
from Transactions t
join Reconciliations r on r.transId = t.id
join Reconciliations r2 on r2.num = r.num
join Invoices i on i.transId = r2.transId
Note that the joins are now inner joins (requiring a match), and how you easily make the connection to the right Invoice via the shared Reconciliation.num value - using inner joins means you only get the invoice row that matches.
To see this query in action, execute it on SQLFiddle
Edit: To cater for missing invoices
Use left join to invoices, but you need a group by with max() to limit the joins to just one invoice per transaction (without the max() you get lots of extra rows with null Code):
select t.id, r.num, max(i.Code) as Code
from Transactions t
join Reconciliations r on r.transId = t.id
join Reconciliations r2 on r2.num = r.num
left join Invoices i on i.transId = r2.transId
group by t.id, r.num
To see this query in action, where I have invalidated invoice 12 from above fiddle, execute it on SQLFiddle
You seem to want to spread the InvoiceId in Transactions up to the next value.
Here is one method:
select t.*
(select top 1 InvoiceId
from Transactions t2
where t2.id <= t.id and t2.InvoiceId is not NULL
order by id desc
) as newInvoiceId
from transactions t;
You can then substitute this into your query:
select
t1.id -- transaction id
t2.num -- reconciliation number
t3.Code -- Invoice code
from (select t.*
(select top 1 InvoiceId
from Transactions t2
where t2.id <= t.id and t2.InvoiceId is not NULL
order by id desc
) as newInvoiceId
from transactions t
) t1
left outer join Reconciliations t2 on t2.transid = t1.id
left outer join Invoices t3 on t3.id = t1.transid ;
In sql server 2005, how do I get the result set in table3 below? table3 is created by combining table1 and table2 like this:
table1.empid
table1.ticket
table2.identid
And update against table1 joined to table2 doesn't work because empid isn't unique. If need to increment to the next table2.indentid if the ID is already being used by that employee.
Also, table3 below isn't created yet. It's a generated set from table1 and table2. I'm using table3 as an example of what the generated set should look like.
table1
empid ticketid indentid
1 7 20
1 9 4
2 9 21
table2
indentid empid
90 1
91 1
92 2
table3
empid ticketid table1_indentid table2_identid
1 7 20 90
1 9 4 91
2 9 21 92
The only connection between table1 and table2 is empid.
The lines 1 and 2 of your table3 example have the same empid, so they should have the same table2_identid as well. Your example is not proper, or not possible to get with a query on the existing data.
But maybe this is what you want:
If you join the tables like so
SELECT empid, ticketid, t1.indentid as table1_indentid, t2.identid as table2_identid
FROM table1 AS t1
INNER JOIN table2 AS t2 ON t1.empid = t2.empid
you will get
table3
empid ticketid table1_indentid table2_identid
1 7 20 90
1 7 20 91
1 9 4 90
1 9 4 91
2 9 21 92
This is what you need:
select t1.empid, t1.ticketid,
t1.indentid as table1_indentid,
t2.indentid as table2_identid
from table1 t1
inner join table2 t2 on t1.empid = t2.empid
You should however consider reviewing your data structure.
BA21 YEAR 109 10 119 EBC
BA21 YEAR 9 0 9 FP
BA21 YEAR 3 0 3 BC
My data is like this and I need to convert this to
BA21 YEAR 109 10 119 EBC 9 0 9 FP 3 0 3 BC
How to do this?
THis does not seem like PIVOTing, it more seems like a self join.
Something like
SELECT t1.*,t2.column1,t2.column2,...,t3.column1,t3.column2,...
FROM Table1 t1 INNER JOIN
Table2 t2 ON t1.PrimaryKey = t2.PrimaryKey INNER JOIN
Table3 t3 ON t1.PrimaryKey = t3.PrimaryKey
where you are selecting only the columns from Table2 and Table3 that you need.
Also, this can be changed to LEFT joins if required. Have a look at Introduction to JOINs – Basic of JOINs for JOIN explenations.