I have been reviewing the video series at this site and have found them very helpful but have a need...
I have two data tables one of which is quite large and another table that is small. They have at least one exact field in common, lets call it room number. How do I recognize both tables (in different databases) and join them so I can search a unique item in one table and select its associated data in the other table? I don't image there is a video on this topic for this VB.NET student?
I am new in SQL and i need do a query where I need sum values from 2 tables, when i do it the Sum values are not correct. this is my query
SELECT D.Line AS Line, D.ProductionLine AS ProductionLine, D.Shift AS Shift, SUM(CAST(D.DownTime AS INT)) AS DownTime, R.Category, SUM(Cast(R.Downtime AS INT)) AS AssignedDowntime, CONVERT(VARCHAR(10), D.DatePacked,101) AS DatePacked FROM Production.DownTimeReason R left JOIN Production.DownTimeHistory D
I have two tables tabA (cola1, cola2, cola3) and tabB(colb1, colb2, colb3, colb4) which I need to join on all 3 columns of table A.
Of the 3 columns in tabA, few can be NULL, in that case I want to check the joining condition for the rest of the columns, so its conditional joining. Let me rephrase what I am trying to acheive - I need to check if the columns in joining condition is NULL in my 1st table (tabA), If so I need to check the joining condition for the rest of the two columns, if 2nd column is again NULL, I need to check the joining condition on the third column.
What I am trying to do is as below. Its working, but is very slow when one of the tables is huge. Can I optimize it or rewrite in a better way ?
--- First Create two tables Create table tabA (cola1 nvarchar(100), cola2 nvarchar(100), cola3 nvarchar(100)) Insert into tabA values (NULL,'A1','A2') Select * from tabA create table tabB
I have two dynamic pivot tables that I need to join. The problem I'm running into is that at execution, one is ~7500 characters and the other is ~7000 characters.
I can't set them both up as CTEs and query, the statement gets truncated.
I can't use a temp table because those get dropped when the query finishes.
I can't use a real table because the insert statement gets truncated.
Do I have any other good options, or am I in Spacklesville?
I have two queries from two different tables ex ABC and BCD. For table ABC, according to my query, I got 11 records ; for table BCD I only got 9 records.
Bottom line: I would like to see only 11 records from Table ABC including certain data from table BCD after I joined this two tables.
However, no matter what I did I always got 99 records when I joined.
Looking to improve performance of the following code.
It basically generates future days for each dog. So there is a dog table and a day table with every day.
These 2 table cross join and then fill in missing rows. As time moves i will fill in further future dates but will need the initial insert to be a reasonable query.
All columns are covered by index's but the queries at the end take quite a long time. I would hope for index scan to just point out the missing rows especially on the final query.
How to make the last query as fast as possible.
IF OBJECT_ID('dbo.[AllDates]', 'U') IS NOT NULL DROP TABLE dbo.[AllDates] CREATE TABLE dbo.[AllDates] ( [Date] date not null PRIMARY KEY ) ;WITH Dates AS
I have a table of "applicants" with unique applicant id and another table "reviews" with reviews which has unique id and Emplid and contains general program name like Math and then may contain 3 addition rows for specific program like Calculus, algebra, geometry etc.
There may or may not be a record for each applicant id in table reviews or there can be 1 or more than one record in reviews based on level of review( General or Specific).
All the general reviews has “Math” as Program_code but if there are more reviews, they can have Program_code like “Cal” , “Abr”, “Geo”
I want to join the tables so I can get all the records from both the tables where Program_code in reviews table is “Math” only.
That is I want to join the table and get all the records from reviews table where the program_code is “Math” only How can I do that?
2222 22 22 15 90 1 and this is what I want to retrieve from these 3 tables
stud_num pk2 pk3 age
5432 55 44 23
9876 99 77 23
2222 22 22 15 this my query.... SELECT student.stud_num, student.pk2, student.pk3, student1.age, student2.age AS Expr1FROM student INNER JOIN student1 ON student.stud_num = student1.stud_num AND student.pk2 = student1.pk2 AND student.pk3 = student1.pk3 INNER JOIN student2 ON student.stud_num = student2.stud_num AND student.pk2 = student2.pk2 AND student.pk3 = student2.pk3WHERE (student1.grade = '90') AND (student1.pass = '1') AND (student2.grade = '90') AND (student2.pass = '1') however...it doesnt return any results... can anyone correct my code?
I have two tables in sql server database. Tables are Authors AuthorName varchar (primary key), AuthorImage varchar Threads ThreadID int Primary Key, ThreadAuthor varchar, ForumID int (Foreign Key), ThreadReplyID int, ThreadPostedDate int I have this query: "SELECT ThreadAuthor, ThreadSubject, ThreadPost, ThreadPostedDate , ForumID FROM Threads WHERE ThreadID = " + threadId + " OR ThreadReplyID = " + threadId + " ORDER BY ThreadPostedDate ASC" but i want to display AuthorImage on my webpage. How to modify the existing query to get the Author's image also. Plz help me out anyone there. Thanks
i've two tables. such as tableA and table B table A has a column named CreatedBY and table B the same column.. now i need to get only the rows which match with table A's createdby column.. suppose tableA has only 2 values. when i make the join with tableB it shows as 4 values
I need to perform a join on six different tables to produce a report. The biggest join I have ever done has been four tables. The way I did that query was to join three tables and then to perform the final select on the three table join. Can anyone give me some advice. Should I use the same approach? Or can I just continue to use the keyword INNER JOIN to perform the joins?
select left(orders.orderdate,11) as date, orderdetails.partnumber, SUM(orderdetails.qty) as total from orderdetails, orders where orderdetails.partnumber is not null and orderdetails.order_id = orders.order_id and orders.orderdate >= {ts'2001-05-01 00:00:00'} and orders.orderdate <= {ts'2001-05-31 23:59:59'} group by orders.orderdate, orderdetails.partnumber order by orders.orderdate, total
But I do not have part that have null orders. My goal is to get
1) Get all part numbers, qty in the month of May. 2) at the end attach all partnumbers that have null ordered values to see which one have no orders.
I have 2 tables. One with col1,col2 and second one with col1,col2,col3. My requirement is to compare col1,col2 of t1 with t2 and update only changed records in t2. How to implement? Please advise.
I've tried an outer left join but cannot get the right data. Basically everything from the timecard table and the leftovers from the default table with descriptions for all.
I've got two tables, one called clientsharedeals and the clientorderdeals. In the first table, I have four fields (Rundate, Accno, Dealid, Nominal) that I need to sum(Nominal), grouping by dealid.
Once I've done this, I need to join to clientorderdeals, also having the same fields plus one extra (Rundate, Accno, Dealid, Nominal and Dealseq). Because of Dealseq, I can have more than one row in the table, matching (Rundate, Accno, Dealid, Nominal) of the first table. However, Dealseq increments, so I need to select max(Dealseq).
My query is doubling up on nominal because in my select statement, I am only using one account number, so I know what the value is for nominal and there are two rows in clientorderdeals - and it is not selecting max(dealseq) but both.
Could somebody please explain to me how do we join a table onto itself as that is what I was advised to do but I can't quite get where I want to go.
What I want to do is list values from a table,but those values can be just a quote (what would cost if they decided to go for that option) or those values can represent what was spent and invoiced, what is confusing me is that all of that gets saved in the same table and in same columns, so what was quoted for example for AirFares and what was spent gets saved in the same record but when it is "quoted amount" then ID = 1 but when it is invoiced ID = -1 and that is how we know what was quoted and what was invoiced.
But I need to split that one field into two columns one showing AirFareQuoted and one AirFareInvoiced and i have no idea how to achieve this.
hi, I knew how to join 2 tables but i have a process to select 3 tables. I have a sample table and field below. I want to join Parts & Orders using field Prt_no and Supplier & Parts using field Sup _code
Hey Folks, I am stuck at one place in data migration........ I have the following source tables having no PK / INDEX / Constraint defined on any of them........
T1 ( ID1 INT, STYLE VARCHAR(34) )
T2 ( COL_ID VARCHAR(34), OBJ_ID VARCHAR(34) )
T3 ( OUT_ID VARCHAR(34), ITEM VARCHAR(34), )
And here is the relation..........
Quote: T1.STYLE = T2.COL_ID
T2.OBJ_ID = T3.OUT_ID
T3.ITEM = T2.COL_ID
Here is what I have tried with.........
Quote: SELECT * FROM T3 WHERE ITEM IN ( SELECT COL_ID FROM T1 INNER JOIN T2 ON T1.STYLE = T2.COL_ID INNER JOIN T3 ON T2.OBJ_ID = T3.OUT_ID )
But this query is not helping me out. I mean the number of output records are 0.
Now can any one suggest me a join that includes all the 3 tables, or finetune my query?
hi everybody I have a question and need answer as soon as possible. so i hope i get help. How can i join two tables have no common fields? I tried outer join but i get redundant data(repeated values).
Give me a script to solve the following problem . There are no real wrong answers, but the more efficient and bulletproof the query is the better. Assign rooms to classes based on capacity using the Classes and Rooms tables. Rules: each class should have a room (and NULL if a room is not available). No class can be in a room where there are more students than capacity. No room can be used twice.
And this is the tables query:
CREATE TABLE Classes (
ClassID int NOT NULL,
Class varchar (50),
Students int NOT NULL, CONSTRAINT PK_Classes PRIMARY KEY CLUSTERED (ClassID
) )
GO
CREATE TABLE Rooms (
Room int NOT NULL,
Capacity int NOT NULL,
CONSTRAINT PK_Rooms PRIMARY KEY CLUSTERED (Room)
)
GO
INSERT INTO Classes (ClassID, Class, Students) VALUES (1, 'Whats New for SQL Server 2008', 65)
INSERT INTO Classes (ClassID, Class, Students) VALUES (2, 'Introduction to Silverlight 1.1', 52)
INSERT INTO Classes (ClassID, Class, Students) VALUES (3, 'XQuery Deep Dive', 35)
INSERT INTO Classes (ClassID, Class, Students) VALUES (4, 'Ranking and Windowning', 35)
