SQL Server 2012 :: Conditional Join Between Two Tables
Oct 4, 2015
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 need to add a join in my select query depending upon a variable @LoggedUser. the Join is to be there if @loggedUser is 1 else i do not need it. Currently I am using two different queries one with join and one without it under If (@LoggedUser check).
the join is like - JOIN (SELECT CAST(CONVERT(VARCHAR(8),Analyst_Effective_date , 1) AS DATETIME) Analyst_Effective_date FROM Users us (NOLOCK) JOIN Primary_Analysts (NOLOCK) ON User_Count_Id = Analyst_Id_fk WHERE User_Count_Id in ((SELECT VALUE FROM dbo.fParseString(@Analyst, ',')) )) Ana ON dep.Departure_Code = Ana.Primary_Analyst_Departure_Code_fk )
Any way that the join can be added conditionally in the query so i do not have to write the whole code again for one join.
I am writing a stored procedure that takes in a customer number, a current (most recent) sales order quote, a prior (to most current) sales order quote, a current item 1, and a prior item 1, all of these parameters are required.Then I have current item 2, prior item 2, current item 3, prior item 3, which are optional.
I added an IF to check for the value of current item 2, prior item 2, current item 3, prior item 3, if there are values, then variable tables are created and filled with data, then are retrieved. As it is, my stored procedure returns 3 sets of data when current item 1, prior item 1, current item 2, prior item 2, current item 3, prior item 3 are passed to it, and only one if 2, and 3 are omitted.I would like to learn how can I return this as a one data set, either using a full outer join, or a union all?I am including a copy of my stored procedure as it is.
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 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?
I have 3 tables , Customer , Sales Cost Charge and Sales Price , i have join the customer table to the sales price table with a left outer join into a new table.
i now need to join the data in the new table to sales cost charge. However please note that there is data that is in the sales price table that is not in the sales cost charge table and there is data in the sales cost charge table that is not in the sales price table ,but i need to get all the data. e.g. if on our application it shows 15 records , the sales price table will maybe have 7 records and the sales cost charge table will have 8 which makes it 15 records
I am struggling to match the records , i have also tried a left outer join to the sales cost charge table however i only get the 7 records which is in the sales price table. see code below
I am trying to pull in columns from multiple tables but am getting an error when I run the code:
Msg 4104, Level 16, State 1, Line 1
The multi-part identifier "a.BOC" could not be bound.
I am guessing that my syntax is completely off.
SELECT b.[PBCat] ,c.[VISN] --- I am trying to pull in the Column [VISN] from the Table [DIMSTA]. Current Status: --Failure ,a.[Station] ,a.[Facility] ,a.[CC] ,a.[Office]
I am having problems joining these two tables and returning the correct values. The issue is that i have a work order table and a revenue table. I only want to return the sum of the revenue when the revenue comes after the work order date. That is simple enough, but it gets tricky when there are multiple work orders for the same ID. for those instances, we only want the sum of the revenue if it shows up post the work order date and if it is before any other work order date. So ID 312187014 should only have the 9-5 revenue from below, not the 7/7 or 8/6 revenue because the 8/7 work order date is after those revenue dates and thus will not have any revenue tied to it because there is a 9/3 work order that ties to the 9/5 revenue. Additionally the 412100368 ID has a 7/7 work order that ties to the 7/26 revenue, and the 8/7 work order will tie to the 8/23 and 9/20 revenue
--===== Create the test table with
CREATE TABLE #workorder ( Id varchar(20), wo varchar(10), wodate datetime, amount float ) GO CREATE TABLE #revenue
I have a function with multiple if ( condition) which is CPU intensive. How could I avoid this.
CREATE FUNCTION prici.[fn_pricipalamt] ( -- Add the parameters for the function here @Tcode char(10), @SecTypeCode1 char(10), @SecTypeCode2 char(10), @TradeAmount float,
I have a data model with 7 tables and I'm trying to write a stored procedure for each table that allows four actions. Each stored procedure should have 4 parameters to allow a user to insert, select, update and delete a record from the table.
I want to have a stored procedure that can accept those 4 parameters so I only need to have one stored procedure per table instead of having 28 stored procedures for those 4 actions for 7 tables. I haven't found a good example online yet of conditional logic used in a stored procedure.
Is there a way to add a conditional logic IF statement to a stored procedure so if the parameter was INSERT, go run this statement, if it was UPDATE, go run this statement, etc?
I'm trying to convert the query immediately below into a function with the conditional logic to return a VARCHAR value with the gender: male, female or unknown.
SELECT empid, firstname, lastname, titleofcourtesy, CASE WHEN titleofcourtesy IN('Ms.', 'Mrs.') THEN 'Female' WHEN titleofcourtesy = 'Mr.' THEN 'Male' ELSE 'Unknown' END AS gender FROM HR.Employees; GO
Below is the conditional logic function I'm trying to create to replicate the logic above.
CREATE FUNCTION dbo.Gender ( @male AS VARCHAR(10), @female AS VARCHAR(10), @unknown AS VARCHAR(10) ) RETURNS VARCHAR(10)
Im faced with the following design issue.. on my site there are different profiles: a city profile, a restaurant profile and a user profile. in my DB:City profiles are stored in tbCities cityID int PK shortname nvarchar(50) forumID int FK (...) Restaurant profiles are stored in tbRests restID int PK shortname nvarchar(50) forumID int FK (...) User profiles are stored in tbUsers userID int PK shortname nvarchar(50) forumID int FK (...) as you can see a single ID value (for CityID,restID or userid) might occur in multiple tables (e.g. ID 12 may exist in tbRests and in tbUsers)Each of these profile owners can start a forum on their profile. forumID in each of the above tables is a FK to the PK in tbForums:forumID intforumname nvarchar(50) (...) Now imagine the following: a site visitor searches ALL forums...say he finds the following forums:ForumID Forumname1 you opinion on politics2 is there life in space?3 who should be the next president of the USA? a user may want to click on the forum name to go to the profile the forum belongs to.And then there's a problem, because I dont know in which table I should look for the forum ID...OR I would have to scan all tables (tbCities,tbRests and tbUsers) for that specific forumid,which is time-consuming and I dont want that! so if a user would click on forumID 2 (is there life in space?) I want to do a conditional inner join for the tablecontainingforumID (which may be tbCities,tbRests or tbUsers) select tablecontainingforumID.shortname FROM tablecontainingforumID tINNER JOIN tbForums f ON t.ForumID=f.ForumIDwhere f.ForumID=2 I hope my problem is clear..any suggestions are welcome (im even willing to change my DB design if that would increase effectivity)
tblWine tblSpecialOfferWine tblSpecialOffer ID Name ID WineID SpecialOfferID ID Name IsLive ===================== ============================ ========================== 1 Mouton Rothschild 1 1 1 1 February Offer 0 2 Lafite Rothschild 2 1 2 2 March Offer 1 3 Chateau Teyssier 3 2 1
... and the current query I am using is the following along with it's result set ...
SELECT tblWine.ID AS WineID, tblWine.Name AS WineName, tblSpecialOffer.ID AS SpecialOfferID, tblSpecialOffer.Name AS SpecialOfferName
FROM tblWine LEFT OUTER JOIN tblSpecialOfferWine ON tblSpecialOfferWine.WineID = tblWine.ID LEFT OUTER JOIN tblSpecialOffer ON tblSpecialOfferWine.SpecialOfferID = tblSpecialOffer.ID
Results WineID WineName SpecialOfferID SpecialOfferName ================================================== ========= 1 Mouton Rothschild 1 February Offer 1 Mouton Rothschild 2 March Offer 2 Lafite Rothschild 1 February Offer 3 Chateau Teyssier NULL NULL
... but the result set I want is All wines and their associated specials offers but only show details of the offer if the offer is live like so ...
I am trying to join Table A to Table B using the below log . Table A should have one unique mathincg record from Table B
option 1. Using registration_key and discharge_dt , looking for exact matching date( end_dt) in table B , if there is more than one record that matches then select lowest ID
option 2.if there is no record that matches option1 then, serch for the previous record with end_dt in table A less than end_dt table B. if there is more than one record then select lowest ID
option 3. if there is no record option 2 then search the next record that matches .. discharge_dt greater than end_Dt , if there is more than one record then select lowest Id
so basically, I am looking for an exact matching date in the same registration_key .. if the exact dt doesn't exist looking for the previous record and get the most closer dt and if there is no prvious record than look for next record,.
so the output should look like
output Registration_key ID end_dt discharge_dt value
Hi,I am trying to change an SP from dynamic SQL to proper SQL but I can'tfigure a way to conditionally add extra parts to the statement. Howcan I do the equivalent of the following?DECLARE @arg NVARCHAR(10)SELECT a.i, a.xFROM aTable aIF LEN(@arg)BEGININNER JOIN bTable b ON a.[id] = b.[id]ENDConditionally adding the INNER JOIN is very easy when building up a SQLstring but I can't see how to do it in pure SQL?Thanks.
I have these two tables => Table a Name CEN VID 1. AA 01 11 2. BB 01 11 3. CC 02 12
Table b CEN VID CName 01 11 ZZZZ NULL 12 YYY 02 PR XXX
I want to join either on CEN or VID.
1. Join with CEN but If CEN is NULL in table b than the inner join will be VID (automatically in single query) 2. Join with VID but if VID in table b = 'PR' than the inner join will switch to CEN (automatically)
TRANAMT being the amount paid & TOTBAL being the balance due per the NAMEID & RMPROPID specified.The other table includes a breakdown of the total balance, in a manner of speaking, by charge code (thru a SUM(OPENAMT) query of DISTINCT CHGCODE
Also with a remaining balance (per CHGCODE) column. Any alternative solution that would effectively split the TABLE1.TRANAMT up into the respective TABLE2.CHGCODE balances? Either way, I can't figure out how to word the queries.
I want to filter some search results using an inner join.The criteria are passed as a parameter.If the parameter has value, I want to inner join with it. If there is a NULL value, I just want to ignore the inner join. I don't want to:1) Build a string and do an exec() - too slow and hard to maintain2) use a (@parm IS NULL) OR ('inner join') AGAIN, too slow Suggestions appreciated
I want to write a query that joins data in a different table based on a column value. The table is for a "Playlist" and holds play list items. The items can be video, audio, images, etc. The playlist table looks like this:
Table_Playlist ----------------- ID (int) MediaType (char) MediaId (int)
Table_Audio ----------------- MediaId (int)
Table_Video -------------- MediaId (int)
If the Table_Playlist.[MediaType] column value = "Audio" then I want to join to the Table_Audio table. If the value = "Video" then I need the video table.
I am trying to join Table A to Table B using the below log . Table A should have one unique mathincg record from Table B
option 1. Using registration_key and discharge_dt , looking for exact matching date( end_dt) in table B , if there is more than one record that matches then select lowest ID
option 2.if there is no record that matches option1 then, serch for the previous record with end_dt in table A less than end_dt table B. if there is more than one record then select lowest ID
option 3. if there is no record option 2 then search the next record that matches .. discharge_dt greater than end_Dt , if there is more than one record then select lowest Id
so basically, I am looking for an exact matching date in the same registration_key .. if the exact dt doesn't exist looking for the previous record and get the most closer dt and if there is no prvious record than look for next record,.
so the output should look like
Table B Registration_key ID end_dt discharge_dt value
I Have Table Called 'Sales' and 'Voucher',I Need To Show Each Customer ""Dueamount"" Details Based Upon Customer Paid in 'Voucher' Table But One thing I have Not Maintained Transaction History For Customer in 'Sales' Table Means I Have Column named "CreditAmount" in 'Sales' and Column Named "VoucherAmount" in 'Voucher' ,For every transaction I am updating Column named "CreditAmount" in 'Sales', So finally 'Dueamount' Must be calculated according to "VoucherAmount" of customer in 'Voucher' Table....
My Query: SELECT CONVERT(varchar,BillDate,103) as BillDate,isnull(NetAmount,0) as BillAmount, case when VoucherAmount != 0 then sum(VoucherAmount)else 0 end as'AmountReceived',case when CreditAmount !=0 then CreditAmount else 0 end as 'DueAmount' from Voucher INNER join Sales on CustomerId=CustomerID and BillMasterID=BillMasterID WHERE CONVERT(varchar,BillDate,103)='03/03/2014' AND CustomerId=101
I am using the following select statement to get the row count from SQL linked server table.
SELECT Count(*) FROM OPENQUERY (CMSPROD, 'Select * From MHDLIB.MHSERV0P')
MHDLIB is the library name in IBM DB2 database. The above query gives me only the row count of table MHSERV0P. However, I need to get the names, rowcounts, and sizes of all tables that exist in MHDLIB librray. Is it possible at all?
I have a merge join that does a full outer join. I then have a conditional split that will breakout by unchanged, insert and update. The update is what I am having a problem with. The conditional split for the update is a follows:
!ISNULL(HISTORICAL) && !ISNULL(TRANSFORM)
Now I believe the problem is related to spaces in the key field let me explain.
The join field is defined as [char](14) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
There was an original mismatch between the two tables of VARCHAR(14) & Char(14) but now there both Char(14).
What's interesting is that the few records with Alpha characters correctly does the update but the records with starting numeric data all go down the insert path.
The data of the join columns look like
'308811151 ' - 5 Spaces This Data incorrectly goes to insert path
'TSTRWR02 ' 6 Space This Data correctly goes to update
The data is grouped and sorted by the Key field and the historical and transform column contain a 1 for all records. while the Doc_nbr which is the key
I tested the join in SQL server and it works with and without the spaces.
From SSIS I also tried RTRIM in the SQL command of the source in addition to substring the first 9 with the right trim and I always received the same results.
I am guessing there is something going on with the not isnull in the conditional split but I can't figure it out if I am missing something or if this is a BUG.
Three paths of data after the merge join and the conditional split
I think I am definitely thrashing and am not getting anywhere on something I think should be pretty simple to accomplish: I need to pull the total amounts for compartments with different products which are under the same manifest and the same document number conditionally based on if the document types are "Starting" or "Ending" but the values come from the "Adjust" records.
So here is the DDL, sample data, and the ideal return rows
CREATE TABLE #InvLogData ( Id BIGINT, --is actually an identity column Manifest_Id BIGINT, Doc_Num BIGINT, Doc_Type CHAR(1), -- S = Starting, E = Ending, A = Adjust Compart_Id TINYINT,
[Code] ....
I have tried a combination of the below statements but I keep coming back to not being able to actually grab the correct rows.
SELECT DISTINCT(column X) FROM #InvLogData GROUP BY X HAVING COUNT(DISTINCT X) > 1
One further minor problem: I need to make this a set-based solution. This table grows by a couple hundred thousand rows a week, a co-worker suggested using a <shudder/> cursor to do the work but it would never be performant.
These two T-SQL statements return the same results.
If Microsoft deemed it necessary to add the EXCEPT command, then what are its advantages over an INNER JOIN
-- LIST ONLY PRODUCTS THAT ARE ON A WORK ORDER
USE AdventureWorks2008R2; GO SELECT ProductID FROM Production.Product INTERSECT SELECT ProductID FROM Production.WorkOrder ;
USE AdventureWorks2008R2; GO SELECT DISTINCT Production.WorkOrder.ProductID FROM Production.Product INNER JOIN Production.WorkOrder ON Production.WorkOrder.ProductID = Production.Product.ProductID
What is wrong with my syntax?I want to return the value of the AchiveYear Value based on records in theCall that match.
SELECT DATEPART(yyyy,Call_Date) AS ArchiverYear FROM tblCall INNER JOIN PrismDataArchive.dbo.ArchiveDriver AS Arch ON tblCall.DATEPART(yyyy,Call_Date) = Arch.ArchiveYear
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?
We have a query that joins column A int which is an int onto column B with contains only int's but was created as a varchar and can't be changed to an int at the moment.
Casting column a as a varchar in the ON of the join to left join seems to void the index altogether and the query just runs for every.
We are talking a few hundred million rows of data in each table.
Temp solution is select into a #Hash table as correct data type and index then use the #Hash table in the join.
I came across this structure today and haven't seen it before:
SELECT blablabla FROM T1 FULL OUTER JOIN T2 ON T1.Col1 = T2.Col1 AND T1.Col2 = T2.Col2 ON T3.Col1 = T1.Col1 AND T3.Col2 = T1.Col2 ON T4.Col1 = T1.Col1 AND T4.Col2 = T1.Col2
