Question.
I have a new table that I am adding to a script that I wrote. This
table has 3 fields, the first 2 fields are used in the on statement as
being = other fields in the script.
The first field always has data in it, but the 2nd field is sometimes
null.
So my problem is if both fields have data in them and they both match
to the data in the fields that I am linking them to, then it returns
the 3rd field without a problem. However if the 2nd field is null then
it is returning a null for the 3rd field. I have checked and the field
that I am linking to is null also.
So if I have
select t1.field1, t1.field2, t2.field1, t2.field2, t2.field3
from table1 t1
join table2 t2
on t1.field1=t2.field1 and t1.field2=t2.field2
with 2 records in each table
table1: record1: data, data
record2: data, null
table2: record1: data,data,data
record2: data,null,data
what I get from the script is
record1: data, data,data,data,data
record2: data,null,data,null,null
I would expect
record2: data,null,data,null,data
I hope this makes sense, I didn't want to post the entire actual script
as it is about 150 lines long.
Is it bad design to allow nulls on a date field ? I can think of one case such as a sale of an item and populating a field for the date of purchase, only when the purchase took place (and null until then).
Could anyone tell me what governs whether a column is set as nullable or not nullable when creating a table using SELECT...INTO. It just seems to pick at random for me! I'm quite sure this is not the case. Is there a way to force a column to be non- nullable? I seem to be wasting a lot of time going through and altering the schema so I can use the columns in keys and indexes.
I have a case where a table has two candidate primary keys,but either (but not both) may be NULL. I don't want to storea copy of the concatenated ISNULL'ed fields as an additionalcolumn, though that would work if necessary. Instead, I triedthe following (this is a related simplified example, not myreal one):CREATE FUNCTION ApplyActionPK(@IP int = NULL,@DNS varchar(64) = NULL)RETURNS varchar(74) -- NOT NULLASBEGINdeclare @val varchar(74)set @val = str(ISNULL(@IP, 0), 10)set @val = @val + ISNULL(@DNS, '')return @val-- Also tried "return str(ISNULL(@IP, 0), 10)+ISNULL(@DNS, '')"-- Also tried "return ISNULL(STR(@IP, 10), ISNULL(@DNS, ''))"-- ... and other things...ENDGOcreate table ApplyAction(-- An action applies to a computerAct varchar(16) NOT NULL,-- The action to applyIP int NULL,-- The computer IP address, orDNS varchar(64) NULL,-- The DNS name of the computerTarget as dbo.ApplyActionPK(ComputerID, DNS), -- PK value-- Also tried "Target as ISNULL(STR(@IP, 10), ISNULL(@DNS, ''))"CONSTRAINT PK_ApplyAction PRIMARY KEY(Act, Target))SQL Server always complains that the primary key constraint cannot becreated over a nullable field - even though in no case will the 'Target'field be NULL.Please don't explain that I should store an IP address as a string.Though that would suffice for this example, it doesn't solve myactual problem (where there are four nullable fields, two of whichare FKs into other tables).What's the reason for SQL Server deciding that the value is NULLable?What's the usual way of handling such alternate PKs?Clifford Heath.
Hi,I've enherited a big mess, a SQL Server 2000 database withapproximately 50 user tables and 65+ GB data, no explicitrelationships among entities (RI constraints whatsover), attempt tocreate an ERD would more than likely kill the relatively complexedapp, the owner would want to drop out of window, so,I don't intend to do that, you get the picture, sorry no DDLs thistime, and many tables have many nullable columns, joins slows down thesystem quite a bit, what's my best bet to improve its performance?change most of these nullable columns into non-nullable with defaultvalue of something like ' ', any thoughts along this line would beappreciated.
I have 4 particular columns (crt_dt,upd_dt,entity_active and user_idn) in many of the tables in my database. Now i have to find all the tables having four columns mentioned above and cases are
1) if the column is nullable., then it should result 'Y' 2) if the column is not nullable., then it should result 'N' 3)if column is not present., then it should display '-'
I am trying to join two tables and the datetime fields need to be part of the join. They contain times in the fields too. I just need them to join on the date part though. Is there maybe a way to just return the mm/dd/yyyy format and join on that? Any and all help is appreciated.
I have a sql 2005 dev ed running an application developed in vs.net 2005 C# I have several gridviews which have a field call first name and a field called lastname I need to put both the firstname and lastname in the same cell or colum row. I do not now how to join these. Can some one help me with a SQL query string that will do this for me.
I want to query TABLE1, row 1 so that I pull back the Names for the values stored in the ID and Other_ID fields so that my results are like: John Bob Number1
The only way around it now is that I store Other_Name in Table1.
I have a simple query which displays items from inventory with their latest annual test date. I want to create another unique reference in my results to use as a certificate number. The number should be a combination of the item+month+year from the test date. What is the easiest way to accomplish this?
My query and my desired results are below:
select item, test_date from inventory where cat = 'TELE' and itemised_status > 15
Can someone comment on why joining two tables on CHAR fields of different lengths would generate unexpected results?
I had an issue where I ran an update that used an inner join on two tables. The field I used in the join was char(50) in one table and char(13) in another table. The result gave bad matches. After changing the field types both to varchar(30), the problem was eliminate.
How can I create a Table whose one field will be 'tableid INT IDENTITY(1,1)' and other fields will be the fields from the table "ashu". can this be possible in SQL Server without explicitly writing the"ashu" table's fields name.
I have created 3 views, which I then want to join to produce an overall result. The first view returns customer details, along with payment information. The next two views return values only when the customer has purchased extras outside our standard product i.e. if there is no purchase of an extra, then nothing is written to the extra's table. When I join the views together they only return values where data has been matched in all 3 views i.e. extra's have been purchased. Any data that did not match in all 3 view (i.e. no extra's purchased) is either ignored or dropped from the results. So I need my script to return all values even if no data exists in the two extra views.
My scripts are as follows: Main View SELECT CUSTOMER_POLICY_DETAILS.POLICY_DETAILS_ID, CUSTOMER_POLICY_DETAILS.HISTORY_ID, CUSTOMER_POLICY_DETAILS.AUTHORISATIONUSER, CUSTOMER_POLICY_DETAILS.AUTHORISATIONDATE, ACCOUNTS_TRANSACTION.TRANSACTION_CODE_ID, CUSTOMER_INSURED_PARTY.SURNAME, SYSTEM_INSURER.INSURER_DEBUG, SYSTEM_SCHEME_NAME.SCHEMENAME, CUSTOMER_POLICY_DETAILS.POLICYNUMBER, --TotalPayable IsNull(SUM(CASE LIST_TRAN_BREAKDOWN_TYPE.IncludeInTotal WHEN 1 THEN ACCOUNTS_TRAN_BREAKDOWN.AMOUNT ELSE 0 END), 0) AS TotalPayable, --NetPremium IsNull(SUM(CASE ACCOUNTS_TRAN_BREAKDOWN.Tran_Breakdown_Type_ID WHEN 'NET' THEN ACCOUNTS_TRAN_BREAKDOWN.AMOUNT ELSE 0 END), 0) AS NetPremium, --IPT IsNull(SUM(CASE WHEN SubString(ACCOUNTS_TRAN_BREAKDOWN.Premium_Section_ID, 1, 3) = 'TAX' THEN ACCOUNTS_TRAN_BREAKDOWN.AMOUNT ELSE 0 END), 0) AS IPT, --Fee IsNull(SUM(CASE ACCOUNTS_TRAN_BREAKDOWN.Tran_Breakdown_Type_ID WHEN 'FEE' THEN ACCOUNTS_TRAN_BREAKDOWN.AMOUNT ELSE 0 END), 0) AS Fee, --TotalCommission IsNull(SUM(CASE WHEN SubString(ACCOUNTS_TRAN_BREAKDOWN.Tran_Breakdown_Type_ID, 4, 4) = 'COMM' THEN ACCOUNTS_TRAN_BREAKDOWN.AMOUNT ELSE 0 END), 0) AS TotalCommission
FROM ACCOUNTS_CLIENT_TRAN_LINK INNER JOIN ACCOUNTS_TRANSACTION ON ACCOUNTS_CLIENT_TRAN_LINK.TRANSACTION_ID = ACCOUNTS_TRANSACTION.TRANSACTION_ID INNER JOIN ACCOUNTS_TRAN_BREAKDOWN ON ACCOUNTS_TRANSACTION.TRANSACTION_ID = ACCOUNTS_TRAN_BREAKDOWN.TRANSACTION_ID INNER JOIN LIST_TRAN_BREAKDOWN_TYPE ON ACCOUNTS_TRAN_BREAKDOWN.TRAN_BREAKDOWN_TYPE_ID = LIST_TRAN_BREAKDOWN_TYPE.TRAN_BREAKDOWN_TYPE_ID INNER JOIN CUSTOMER_POLICY_DETAILS ON CUSTOMER_POLICY_DETAILS.POLICY_DETAILS_ID = ACCOUNTS_CLIENT_TRAN_LINK.POLICY_DETAILS_ID AND CUSTOMER_POLICY_DETAILS.HISTORY_ID = ACCOUNTS_CLIENT_TRAN_LINK.POLICY_DETAILS_HISTORY_ID INNER JOIN SYSTEM_INSURER ON CUSTOMER_POLICY_DETAILS.INSURER_ID = SYSTEM_INSURER.INSURER_ID INNER JOIN SYSTEM_SCHEME_NAME ON CUSTOMER_POLICY_DETAILS.SCHEMETABLE_ID = SYSTEM_SCHEME_NAME.SCHEMETABLE_ID INNER JOIN CUSTOMER_INSURED_PARTY ON ACCOUNTS_CLIENT_TRAN_LINK.INSURED_PARTY_HISTORY_ID = CUSTOMER_INSURED_PARTY.HISTORY_ID AND ACCOUNTS_CLIENT_TRAN_LINK.INSURED_PARTY_ID = CUSTOMER_INSURED_PARTY.INSURED_PARTY_ID WHERE CUSTOMER_POLICY_DETAILS.AUTHORISATIONDATE = '2007-08-17' AND ACCOUNTS_TRANSACTION.TRANSACTION_CODE_ID <> 'PAY'
GROUP BY CUSTOMER_POLICY_DETAILS.POLICY_DETAILS_ID, CUSTOMER_POLICY_DETAILS.HISTORY_ID, CUSTOMER_POLICY_DETAILS.AUTHORISATIONUSER, CUSTOMER_POLICY_DETAILS.AUTHORISATIONDATE, ACCOUNTS_TRANSACTION.TRANSACTION_CODE_ID, CUSTOMER_INSURED_PARTY.SURNAME, SYSTEM_INSURER.INSURER_DEBUG, SYSTEM_SCHEME_NAME.SCHEMENAME, ACCOUNTS_TRANSACTION.Transaction_ID, CUSTOMER_POLICY_DETAILS.POLICYNUMBER
Add on View 1 CREATE VIEW TOPCARDPA AS select policy_details_id, History_id, Selected from customer_addon where product_addon_id = 'TRPCAE01'
Add on View 2 CREATE VIEW TOPCARDRESC AS select policy_details_id, History_id, Selected from customer_addon where product_addon_id = 'HICRESC01'
Join Result Script SELECT TOPCARD.AUTHORISATIONUSER, TOPCARD.AUTHORISATIONDATE, TOPCARD.TRANSACTION_CODE_ID, TOPCARD.SURNAME, TOPCARD.INSURER_DEBUG, TOPCARD.SCHEMENAME, TOPCARD.POLICYNUMBER, TOPCARD.TotalPayable, TOPCARD.NetPremium, TOPCARD.IPT, TOPCARD.Fee, TOPCARD.TotalCommission, TOPCARDPA.SELECTED, TOPCARDRESC.SELECTED FROM dbo.TOPCARD TOPCARD INNER JOIN dbo.TOPCARDPA TOPCARDPA ON TOPCARD.POLICY_DETAILS_ID = TOPCARDPA.POLICY_DETAILS_ID AND TOPCARD.HISTORY_ID = TOPCARDPA.HISTORY_ID INNER JOIN dbo.TOPCARDRESC TOPCARDRESC ON TOPCARD.POLICY_DETAILS_ID = TOPCARDRESC.POLICY_DETAILS_ID AND TOPCARD.HISTORY_ID = TOPCARDRESC.HISTORY_ID
I have included all the scripts I have used, as others may find them useful, in addition to anyone that is able to provide me with some assistance. Thanks in advance for for the help.
Hi. I'm new to SQL, and need to join 2 tables... any hints??? table1:id (int)title(varchar(50))body(text) table2:id (int)title(varchar(50))body(text) somehow need to get the id, which table the record is from, and the title and body... so if the tables had the information: table1:id title body1 "first title" "first body"2 "second title" "second body"3 "third title" "third body" table2:id title body1 "first title" "first body"2 "second title" "second body"3 "third title" "third body" I would like to get... id table title body3 1 "third title" "third body"3 2 "third title" "third body"2 1 "second title" "second body"2 2 "second title" "second body"1 1 "first title" "first body"1 2 "first title" "first body" Does anyone know how to get this? I am fairly flexible if i need to change things... cheers, eh!
Hello everyone,I'm starting a new project right now and am trying to cut down on the number of stored procedures and tables I'm gonna have to use and I have run into a dead end.Up till now I have been doing the following: Say I had a PRODUCTS table with a DesignId column and ColorId column. I would then create a DESIGN table (Name, Id) and a COLOR table (Name, Id) to INNER JOIN with the two columns in my PRODUCTS table. And the same goes for all my other tables: ORDERS, CUSTOMERS, LINKS etc...... And in the end I would have a lot of tables and stored procedures for these category columns. So I thought, it would be nice to just have a Categories and Subcategories table for all my category columns for the whole website. That way every time I need to define a category column for any table I can simply just add the values to my Categories and Subcategories table instead of having to create a new table for every category column. Everything is fine and dandy except for trying to INNER JOIN these two tables with more than one column. To get values for one column is no problem:<code> SELECT *, _SubCategories.SubCategoryNameFROM _ProductsINNER JOIN _SubCategoriesON _Products.DesignId = _SubCategories.SubCategoryIdWHERE DesignId = COALESCE (@DesignId, DesignId)</code> But how do you INNER JOIN the ColorId column as well. Both DesignId and ColorId values are in my _SubCategories table. In a stored procedure: Is there any way to create a table and columns. Run a loop statement, with one INNER JOIN . Rerun another loop statement with a new INNER JOIN statement? Would that work or does any one else have an idea what would?Thank you guys for the help. It is much appreciated. Alec
Hello all, I have two datatables "customersReached " and "customersGuessed " and I want to combine them into one table only, the problem is that one table exeeded to the other by two fields, so what can I do??????? Mahmoudona
I've been trying to think about how I can do this. I have forums that I have written built around SQL Server. Basicly you have:
-A users Table -A Posts Table -A Replies Table.
Posts and replies have very similar structures. I'd like to be able to merge them and pick out the earliest post for said forum.
1 - is there a way to merge them so that the post date for both the replies and posts tables is contained in 1 column. If not is there a better alternative.
I'd also like to add indexing to the posts so I can do paging. Is there a way for me to add an index number to them while I can sort them anyway i want.
I am using MS SQL Server 2005 on Windows XP with SQL Server Management Studio Express CTP. I am having issues with my query on joining 2 tables I created using BETWEEN to restrict the Salary. Table 1 is called Employee and Table 2 is called Job_title. The column Job_title_code is the only column that is in both tables which is how I am joining both tables. Here is my SQL query:
Code:
SELECT Employee.*, Job_title.*
From Employee
INNER JOIN Job_title
ON Employee.Job_title_code=Job_title.Job_title_code
WHERE Salary
BETWEEN 50000 AND 500000;
The results I am getting back are:
Msg 207, Level 16, State 1, Line 7 Invalid column name 'Job_title_code'.
I can't figure out how to fix this error. I feel like I have tried everything, so any help will be much appreciated. Thank you.
Hi, I have a table with fields as partnerid, contractno. The partnerid field has the Id number which can be a supplier or a customer. I need to get the partner id(supplier) and the partner id (customers) of that particular supplier only. I tried with self join but the data is data is replicating.
Data in table PId ContractNo 20045 1567 435 1567 123 1567 345 1678 1004 1678
I need to display the data in the following format.
jack 20 Melbourne AAA Nick 30 Bendigo BBB Russ 28 Sydney AAA Marty 31 Perth AAA
Table 3
name age city Position
jack 20 Melbourne Manager Nick 30 Bendigo Manager Russ 28 Sydney Clerk Marty 31 Perth Manager
Table 4
name age city datejoined
jack 20 Melbourne 09-09-2001 Nick 30 Bendigo 08-05-2001 Russ 28 Sydney 10-12-2000 Marty 31 Perth 11-11-1999
I want a query which extract the name, age and city from Table 2 (where name,age and city equals table1 values) and position from table3 where position is 'manager' else return null and date joined from table 4 only for the managers else return null.
so the result should be
name age city position datejoined
jack 20 Melbourne Manager 09-09-2001 Nick 30 Bendigo Manager 08-05-2001 Russ 28 Sydney null null
my query
SELECT b. name, b.age, b.city,b.company,c.position,d.datejoined FROM Table1 a, Table2 b, Table3 c, Table4 d WHERE a.age=b.age and a.name=b.name and a.city=b.city and b.age*=c.age and b.name*=c.name and b.city*=c.city and b.position='Manager' and b.age*=d.age and b.name*=d.name and b.city*=d.city
THE RESULT IS
jack 20 Melbourne Manager 09-09-2001 Nick 30 Bendigo Manager 08-05-2001 Russ 28 Sydney null 10-12-2000
When I try to join table4 with table i am getting a exception
Ps: as the original code was in SQL SERVER 6.5 I have to use *= for joins not keywords LEFT JOIN or RIGHT JOIN
I have a bit of an issue that I can not seem to figure out and was hoping to get some feedback/advice from you all.
First a little background. I have two databases and I am adding a new table too one of them. However I need to join the two databases but by columns and the columns I want to use to join them will use different data types and values.
Example database 1 column 1 will be groups.group.id and database 2 column 1 will be users.group.id. However in database 2 (users) the group_id will contain different data.
Database 1 group.id will contain a single integer and database 2 group.id I want to have it contain multiple integers seperated by a comma.
Example code: select groups.group.id, groups.group.name from groups, users where groups.disabled='1' and users.user_id = $user_id and groups.group.id ? users.group.id
The "?" is where I am having trouble. Does anyone know of a way to join two databases by columns using different data types?
Hi, i have some sql experience and can link tables but the link i am trying to get is not displaying how i need it to
here is the code i am using, which display logical results, but not the ones i need :P
qry = "SELECT * FROM wce_contact INNER JOIN wce_mailer_link ON wce_contact.UNIQUEID = wce_mailer_link.Contactid LEFT JOIN wce_mailer ON wce_mailer.uniqueid = wce_mailer_link.mailerid RIGHT JOIN wce_mailer_attachments ON wce_mailer_attachments.uniqueid = wce_mailer.fileid WHERE wce_contact.uniqueid = '"& Request.QueryString("id") &"'"
Ok i have these tables
wce_contact This has the contacts name and address
wce_mailer This holds the details of the mailer and a link to the wce_mailer_attachments, there would be multiple rows in wce_mailer_attachments table which link to 1 row in wce_mailer.
wce_mailer_link This holds the wce_contact uniqueid, and the wce_mailer uniqueid. there will be many contacts to many mailers
wce_mailer_attachments This holds an individual row for one attachment, but the uniqueid would be the same for multiple rows, Dependant on how many attachments the users adds. i.e. one mailer could have several attachments, they would all have the same uniqueid.
Basically the results i am getting using the join i built are displaying each attachment as a separate row when i display the mailers assigned to a contacts record. i need them to display in one single row where the uniqueids are the same in the wce_mailer_attachments and they match the only fileid in wce_mailer.
Hi all! I have a problem joining three tables. My tables are: rooms: room_id ¦ room_name computers: computer_id ¦ computer_name ¦ room_id bookings: booking_id ¦ computer_id ¦ date
I want to join them so that i get a listing that displays all room names, and if there is a booking for any computer in that room I also want to display the computer name and the booking date next to the room name. If one room has bookings for several computers I would like to display that room several times.
I have gotten a correct result with:
SELECT rooms.room_name, t.computer_name, temp.date FROM rooms LEFT JOIN (SELECT computers.room_id, computers.computer_name, bookings.date FROM computers JOIN bookings ON (bookings.computer_id = computers.computer_id)) AS temp ON (rooms.room_id = temp.room_id)
but I would like to use something shorter like: SELECT rooms.room_name, computers.computer_name, bookings.date from computers INNER JOIN bookings ON (computers.computer_id = bookings.computer_id) RIGHT JOIN rooms ON (computers.room_ID = rooms.room_ID)
That however gives me a list where every combination of rooms and computers is listed and bookings displayed when there is a match. I don't really get why this doesn't work and I've been staring at it for days. Could somebody help me out? (I'm using PHP and MySQL)
Let say i have 3 tables (tblA, tblB, tblC). I want to get all data in tblA. At the same time, i want to join the tables. If value in column aStatus equal to 1, it will get the value from tblB. If the column value is 2, it will refer to tblC. Else, if it 0, no need to refer to any table. just like inner join.. but i dun get the logic of how im going to do that.. can someone advise me on how to do the joining? please refer to picture below.
Not sure if this as straight forward as it sounds!
Everytime I create new fields on our DB it creates new tables(our customer units have changed). What I need to do is pull the customer units from both tables into the same column. Is there a way to do this?
I am having trouble building a query that joins three tables. The tables are:
Table------------key fields Organizations---org_KEY (all fields start with org_) Locations-------LOC_KEY--LOC_ORG_KEY (all fields start with loc_) Users-----------USR_ORG_KEY----USR_LOC_KEY (all fields start with usr_)
Every location record is tied to a record in the organization table. (Via loc_key=org_key) Each user record belongs to one organization and one location. (usr_org_key=org_key and usr_loc_key=loc_key) Not all locations have a user. So if there is no user for any location ,I need the address info.
I need a result that is of all organizations, Locations and users Not all locations have a user but they all have address information eg (loc_address1, loc_city, etc....)
OK this is probably a really simple question, but I need to join three tables and I dont understand which types of "JOIN"s to use or how to lay it all out. Just as an example, this is what i want to do:
(table_name | field1, field2,)
kids_tbl | id, first_name, hair, eyes
hair_tbl | id, hair_color
eye_tbl | id, eye_color
So I want to replace the hair and eye color in the kids_tbl (which are numbers corresponding with the ids in the other tables) with the actual word from the correct table.
I have been reading up on this but it just isn't making sense to me.
Hi! I am trying to join two tables and use BETWEEN to restrict record selection. I have a table called, employee and a table called jobs. How do I write a query where I join the two and restrict the record selection by using the employee's salaries?
