I would like to know if it's possible to return a single record by joining the tables below. [Persons] PersonID [int] | PageViewed [int] =============== ================= 1 10 2 5 3 2 4 12
[PersonNames] - PersonID JOINS Persons.PersonID PersonID [int] | NameID [int] | PersonName [nvarchar] | PopularVotes [int] =============== ============== ======================= =================== 1 1 Samantha Brown 5 1 2 Samantha Green 10 2 3 Richard T 10 3 4 Riko T 0 4 5 Sammie H 0
[AltNames] - backup for searches caused by common spelling mistakes AltNameID [int] | AltNames [nvarchar] ================ ============================= 1 Sam, Samantha, Sammie, Sammy 2 Riko, Rico
[PersonAllNames] - JOINS [PersonNames.NameID] ON [AltNames.AltNameID] NameID [int] | AltNameID [int] ============= ================ 1 1 4 1 3 2 This is ideally what I'd like to have returned: PersonID | PageViewed | MostPopularName | NameSearch ========= ============ ================= ================= 1 10 Samantha Green Samantha Brown, Samantha Green, Sam, Samantha, Sammie, Sammy 2 5 Richard T Richard T 3 2 Riko T Riko T, Riko, Rico 4 12 Sammie H Sammie H, Sam, Samantha, Sammie, Sammy
[MostPopularName] is [PersonNames.PopularVotes DESC].[NameSearch] combines all records from [PersonNames.PersonName] and [AltNames.AltNames].
The purpose for this is that I'd like to cache the results table so that all searches can just perform a lookup against the NameSearch field. Any help would be greatly appreciated. Thanks, Pete.
I know how to join 2 tables, but I have a third I need to insert. For some reason, this doesn't work:
Code:
$rows = ff_select( "select ". "u.email as email, ". "c.user_id as user_id, ". "u.name as name, ". "r.age as age ". "from #__comprofiler as c ". "left join #__users as u on c.user_id = u.id ". "left join #__rnr_contest as r on c.user_id = r.userid ". "where (r.age != chicken) and (r.age != nystrip) and (r.age != regrets) and (u.block = 0) and (c.cb_contactmethod LIKE '%Email%') and (u.usertype != 'Super Administrator') and (u.email != 'please@change.com') and (u.username != 'guest') and (u.username != 'piedmont') ". "order by email"
anyone see why? It tells me that "chicken" is not a column which is weird because I don't think it's listed as a column in my query... is it?
Select LOCGeneralHave.LSCH, LOCSubClassHave.LSCH from LOCGeneralHave ,LOCSubClassHave Where (LOCGeneralHave.LCNT <> '0' andLOCSubClassHave.LCNT = '0')This query seems to be ignoring the 'and' part of the clause.Basically I want select from table1, table2 where LCNT in table1 is not0 andLCNT in table2 is 0.I have verified the LCNT's numbersThis query returns 2 columns with 1700 rowsIt needs to only find a few rows.What am I missing, any ideas, thanks for any help.
Two tables:T1 (c1 int, TestVal numeric(18,2), ResultFactor numeric(18,2))--c1 isthe primary key.T2 (x1 int, FromVal numeric(18,2), ToVal numeric(18,2), Factornumeric(18,2))--x1 is the primary key. T2 contains non-overlappingvalues. So for eg., a few rows in T2 may look like.1, 51, 51.999, 512, 52, 52.999, 52........32, 82, 82.999, 82........T2 is basically a lookup table. There is no relationship between thetwo tables T1 and T2. However, if the TestVal from T1 falls in therange between FromVal and ToVal in T2, then I want to updateResultFactor in T1 with the corresponding value of Factor from the T2table.------Example for illustration only---------------Even though tables cannot be joined using keys, the above problem is avery common one in our everyday life. For example T1 could beemployees PayRaise table, c1=EmployeeID, with "TestVal" representingtest scores (from 1 to 100). T2 representing lookup of the ranges,with "Factor" representing percent raise to be given to the employee.If TestVal is 65 (employee scored 65% in a test), and a row in T2(FromVal=60, ToVal=70, Factor=12), then I would like to update 12 intable T1 from T2 using sql;. Basically T2 (like a global table)applies to all the employees, so EmpID cannot serve as a key in T2.---------------------------------------------------------Could anyone suggest how I would solve MY PROBLEM using sql? I wouldlike to avoid cursors and loops.Reply appreciated.Thanks
In database DB1, I have table DB1.dbo.Suppliers1. This table has an ID column of type INT named SUPPL1_ID
In database DB2, I have table DB2.dbo.Suppliers2. This table has an ID column of type INT named SUPPL2_ID I would like to update DB2.dbo.Suppliers2 based on values from DB1.dbo.Suppliers1 joining on SUPPL1_ID = SUPPL2_ID.
How can I do this in SSIS?
Assumptions:
linked servers are not an option, as I want the SSIS package to be portable and not dependent on server environments. TIA.
I am learning the Optimizer from the book "Querying Microsoft SQL Server 2012" for certificate exam 70-461. I really cannot understand how it explains the number of possible ways to execute a query joining three tables. the pseudo-query is:
SELECT A.col5, SUM(C.col6) AS col6sum FROM TableA AS A INNER JOIN TableB AS B ON A.col1 = B.col1 INNER JOIN TableC AS C ON B.col2 = c.col2 WHERE A.col3 = constant 1 AND B.col4 = constant2 GROUP BY A.col5;
The book says:"Start with the FROM part. Which tables should SQL Server join first, TableA and TableB or TableB and TableC? And in each join, which of the two tables joined should be the left and which one the right table? The number of all possibilities is six, if the two joins are evaluated linearly, one after another."
Q1: How could it be six possibilities? From my understanding, lets say, if the SQL Server has to join A and B first, and then join C, in this case I can think of 4 possibilities, which are:
1. When A Join B, Left: A, Right: B. When Join C, Left: result of A join B, Right: C
2. When A Join B, nbsp; When Join C, nbsp;When A Join B, nbsp; When Join C, nbsp;When A Join B, nbsp; When Join C, "line-height:13.5px;">
Q2: The section following the previous question says there are 4 different types of join.."This already gives four options for each join. So far, there are 6 x 4 = 24 different options for only the FROM part of this query."
How can it be 6 x 4? My understanding is 4 is only for 1 join, but in our case, there are 2 joins, so it should be 6 x 4 x 4.
I am using 3 tables: projects, project_manager and project_employee
projects
- project_id (int, PK) - project_name
project_manager
- project_id (int, PK) - manager_id (int, PK)
project_employee
- project_id (int, PK) - employee_id (int, PK)
Assume that a manager is currently logged in (so we know what is his ID), what I trying to do is write a query that will display a grid-view showing:
project_id, project_name and number of employees in project.
I tried these quires to test:
SELECT project_id, count(emp_id) as NumberOfEmployees into #tempTable FROM project_employee WHERE project_id IN (SELECT project_id FrOM projects) GROUP BY project_id
SELECT projects.project_id, projects.project_name, NumberOfEmployees FROM projects, #tempTable WHERE projects.project_id = #tempTable.project_id
Problems are: 1 - I used two queries not one 2 - The result is for all projects of all managers, I just want to display projects for a specific manager (for example mag_id = 5) 3 - it created a temporary table - which I dont want.
Is there anyway to get what I want in a single query?
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.
Is there any way to update multiple tables in a single query. I know we can write triggers. Apart from triggers, is there any other way available in SQL Server. I am using 2008R2.
Here with the below query iam binding my gridview with industry name,company name,Plant Name,Group Name related to the IDs in Audit table.Select Aud.Ad_ID_PK,Aud.Audit_Name,Ind.Industry_Name,Cmp.Company_Name,Pla.Plant_Name,Gr.Groups_Name,Aud.Audit_Started_On,Aud.Audit_Scheduledto,Aud.Audit_Created_On from Industry Ind, Company Cmp, Plant Pla, Groups Gr, Audits Audwhere Ind.Ind_Id_PK =Aud.Audit_Industry and Cmp.Cmp_ID_PK =Aud.Audit_Company and Pla.Pl_ID_PK =Aud.Audit_Plant and Gr.G_ID_PK =Aud.Audit_Group and Ad_ID_PK in (select Ad_ID_PK from Audits) Now i want to edit these names. when i click on edit in gridview these names will be filled into textboxes and when i change the names it should compare the name with particular tables and should get the Id of that and store in Audits table. For example: i have this data in my audits table:
Commercial83312
2 2 2 1 Here Commercial83312 is ID of that Audit and 2,2,2,1 are the Industry,Company,Plant and group Ids for that particular audit.In the front end i can see the names of this particular IDs. when i edit the industry name in the UI it must check the name with industry table and get the ID of the changed name and store it in audit table. so the data may be changed in audits table as :
Commercial83312
4 2 2 1
so here the industry ID is changed I need the stored procedure for this. please help me,its very urgent...
This a microsoft SQL 2000 server. I have a DB with mutliple tables that have a column called "Date_stamp", which is used as a primary ID. Here is my problem: Some of tables have a bad datetime entry for the "Date_stamp". The bad entry is '2008-3-18". I need to delete this entry from every single table that has a name similary to 'Elect_Sub%Daily'.
I know how to get the user table names from the DB as follows:
SELECT name FROM dbo.sysobjects WHERE xtype = 'U' and name like 'Elect_Sub%Daily'
What I need to do is have a query that will basically scroll through the tables name produced by the above query and search and delete the entries that read '2008-3-18".
delete from tableName where Date_Stamp = '2008-3-18'
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?
