Transact SQL :: Update One Table Based On Another Table Values For Multiple Values
Apr 26, 2015I have two tables A(uname,address,full_name) and B(uname,full_name). I want to update table A for all matching case of uname in table B.
View 5 RepliesI have two tables A(uname,address,full_name) and B(uname,full_name). I want to update table A for all matching case of uname in table B.
View 5 RepliesI'm trying to Update a column table based on values from another table but I need these values are random.My query looks like this and doesn´t work
DECLARE @Rowini int,
DECLARE @lastrow int
SET @Rowini = 1
SET @Lastrow = 80000
[code]...
I have a table #vert where I have value column. This data needs to be updated into two channel columns in #hori table based on channel number in #vert table.
CREATE TABLE #Vert (FILTER VARCHAR(3), CHANNEL TINYINT, VALUE TINYINT)
INSERT #Vert Values('ABC', 1, 22),('ABC', 2, 32),('BBC', 1, 12),('BBC', 2, 23),('CAB', 1, 33),('CAB', 2, 44) -- COMBINATION OF FILTER AND CHANNEL IS UNIQUE
CREATE TABLE #Hori (FILTER VARCHAR(3), CHANNEL1 TINYINT, CHANNEL2 TINYINT)
INSERT #Hori Values ('ABC', NULL, NULL),('BBC', NULL, NULL),('CAB', NULL, NULL) -- FILTER IS UNIQUE IN #HORI TABLE
One way to achieve this is to write two update statements. After update, the output you see is my desired output
UPDATE H
SET CHANNEL1= VALUE
FROM #Hori H JOIN #Vert V ON V.FILTER=H.FILTER
WHERE V.CHANNEL=1 -- updates only channel1
UPDATE H
SET CHANNEL2= VALUE
FROM #Hori H JOIN #Vert V ON V.FILTER=H.FILTER
WHERE V.CHANNEL=2 -- updates only channel2
SELECT * FROM #Hori -- this is desired output
my channels number grows in #vert table like 1,2,3,4...and so Channel3, Channel4....so on in #hori table. So I cannot keep writing too many update statements. One other way is to pivot #vert table and do single update into #hori table.
The objective is to identify orders where an order fee has been applied incorrectly. I have multiple orders per customer, my table contains an orderID and a customerID. Currently if the customer places additional orders before the previous orders have been closed/cancelled, then additional fees are being applied.
Let's say I'm comparing order #1 to order #2. I need to identify these rows where the following is true:-
The CustID is the same.
Order #2 has a more recent order date.
Order #2 has a FeeDate Before the CancelledDate of Order #1 (or Order #1 has no cancellation date).
So in the table the orderID:2835692 of CustID: 24643 has a valid order fee. But all the subsequently placed orders have fees which were applied before the first order was cancelled and so I want to update the FeeInvalid column with a 'Y'. The first fee will always be valid.
I think I understand why the code I am trying doesn't achieve the result I want but I can't figure out how to write it correctly. Below is one example of code I've tried and also code to create the table and insert some test data.
update t1
SET FeeInvalid = 'Y'
FROM MockData t1 Join MockData t2 on t1.CustID = t2.CustID
WHERE t1.CustID = t2.CustID
AND t2.OrderDate > t1.OrderDate
AND t2.FeeDate > t1.CancelledDate
CREATE TABLE [dbo].[MockData](
[OrderID] [float] NULL,
[code]....
I have a form to assign JOB SITES to previously created PROJECT. The JOB SITES appear in the DataList as it varies based on customer. It can be 3 to 50 JOB SITES per PROJECT.
I have "PROJECT" table with all necessary fields for project information and "JOBSITES" table for job sites. I also created a new table called "PROJECTSITES" which has only 2 columns: "ProjectId" and "SiteId".
What I am trying to do is to insert multiple rows into that "PROJECTSITES" table based on which checkbox was checked. The checkbox is located next to each site and I want to be able to select only the ones I need. Btw the Datalist is located inside of a formview and has it's own datasource which already distincts which JOBSITES to display.
Sample:
ProjectId - SiteId
1 - 5
1 - 9
1 - 16
1 - 18
1 - 20
1 - 27
1 - 31
ProjectId stays the same, only values for SiteId are being different.
I hope I explaining it right. Do I have to use some sort of loop to go through the automatically populated DataList records and how do I make a multiple inserts to database table? We use SQL Server 2005 and VB for code behind. Please ask if I missed on some information. Thank you in advance.
There is a table [Formula_Calc] with formula calculations that need to be replaced with relevant values based on another table [Totals]
[Totals]
RowNo|Total
F1|240
F2|160
F3|180
F11|1000
F12|1500
F13|2000
For example we've got a row from [Formula_Calc] table 'F1+F3' as a string that needs to be transformed as 240+160=400
The below code works for the above example but if I pick 'F11+F3' instead , returns 2561 which comes from 2401+16.
Probably replaces F1 value instead of F11 and adds 1st digit (1) if I got it right ...
DECLARE @formula NVARCHAR(100);
DECLARE @Total NVARCHAR(100);
SET @formula = 'F11+F3';
SELECT @formula = REPLACE(@formula,RowNo,Total)
FROM [Totals]
SET @Total='select '+@formula
EXECUTE sp_executesql @Total;
PRINT @Total;
How do I:Select f1, f2, f3, from tb1 where f1=Select f1 from tb2 where f1='condition'?
View 3 Replies View Relatedtable2 is intially populated (basically this will serve as historical table for view); temptable and table2 will are similar except that table2 has two extra columns which are insertdt and updatedt
process:
1. get data from an existing view and insert in temptable
2. truncate/delete contents of table1
3. insert data in table1 by comparing temptable vs table2 (values that exists in temptable but not in table2 will be inserted)
4. insert data in table2 which are not yet present (comparing ID in t2 and temptable)
5. UPDATE table2 whose field/column VALUE is not equal with temptable. (meaning UNMATCHED VALUE)
* for #5 if a value from table2 (historical table) has changed compared to temptable (new result of view) this must be updated as well as the updateddt field value.
In a table I have some rows with flag A & B for a scode, some scode with only A and some are only B flags.
I would like to fetch all rows with flag A when both flags are present, no rows with B should be fetched. Fetch all rows when only single flags are present for a scode.How to achieve this using TSQL code.
Please be easy on me...I haven't touched SQL for a year. Why given;
Code Snippet
USE [Patients]
GO
/****** Object: Table [dbo].[Patients] Script Date: 08/31/2007 22:09:29 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[Patients](
[PID] [int] IDENTITY(1,1) NOT NULL,
[ID] [varchar](50) NULL,
[FirstName] [nvarchar](50) NULL,
[LastName] [nvarchar](50) NULL,
[DOB] [datetime] NULL,
CONSTRAINT [PK_Patients] PRIMARY KEY CLUSTERED
(
[PID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
do I get
Msg 102, Level 15, State 1, Line 3
Incorrect syntax near ','.
for the following;
Code Snippet
INSERT INTO Patients
(ID, FirstName,LastName,DOB) VALUES
( '1234-12', 'Joe','Smith','3/1/1960'),
( '5432-30','Bob','Jones','3/1/1960');
Thank you,
hazz
Here is my table:
My question is: How can I insert a row for each unique TemplateId. So let's say I have templateIds like, 2,5,6,7... For each unique templateId, how can I insert one more row?
When a record is inserted or updated records in Table1 I want a record to be inserted into table3 for each record ID that is in table2 if the table2.id does not already exist in table3. What is the best way to do this? Could this be done with a trigger? If it could how would I write such a trigger. I have never written one before and this sounds like a hand full for my first effort. Your help will be greatly appreciated.
Thanks
I need Insert rows in the OrderDetails Table based on values in the Orders Table
In the Orders table i have a columns called OrderID and ISale.
In the OrdersDetails i have columns called OrderID and SaleType
For each value in the OrderID Column of the Orders Table, anytime the ISale Column in the Orders table = 1, and the SalesType column in the OrderDetails table is empty, I want to add two rows in the OrderDetails table. One row with the value K and another row with the value KD.
That is a row will be added and the value in the SalesType column will be K, also a second row will be added and the value in the SalesType column will be KD
Also for each value in the OrderID Column of the Orders Table, anytime the ISale Column in the Orders table = 0, and the SalesType column in the OrderDetails table is empty, I want to add two rows in the OrderDetails table. One row with the value Q and another row with the value QD
That is a row will be added and the value in the SalesType column will be Q, also a second row will be added and the value in the SalesType column will be QD.
I need a SQL Script to accomplish this. thanks
I would like to update the flag of the promotion ID should the promotion ID date range overlap with Promotion ID(All) Date Range. The general logic is as below.
Update TableName
SET PromotionID Flag = 1 AND Reason = 'Overlap with row ID(Overlap row ID number)'
Where EACH ROW(Except with Promotion ID ALL) Date Range Overlap with ROW(with promotion ID ALL) Date range
Note: ROW is Partition By ColumnA,ColumnB
TableName: PromotionList
ID PromotionID StartDate EndDate ColumnA ColumnB Flag Reason
1 1 2015-04-05 2015-05-28 NULL NULL 0 NULL
2 1 2015-04-05 2015-04-23 2 3 0 NULL
3 2 2015-05-04 2015-07-07 2 3 0 NULL
4 ALL 2015-04-05 2015-04-28 NULL NULL 0 NULL
5 ALL 2015-07-06 2015-07-10 2 3 0 NULL
6 1 2015-02-03 2015-03-03 NULL NULL 0 NULL
Expected outcome after performing update on the table
ID PromotionID StartDate EndDate ColumnA ColumnB Flag Reason
1 1 2015-04-05 2015-05-28 NULL NULL 1 Overlap with row ID 4
2 1 2015-04-05 2015-04-23 2 3 0 NULL
3 2 2015-05-04 2015-07-07 2 3 Overlap with row ID 5
4 ALL 2015-04-05 2015-04-28 NULL NULL 0 NULL
5 ALL 2015-07-06 2015-07-10 2 3 0 NULL
6 1 2015-02-03 2015-03-03 NULL NULL 0 NULL
I am looking for a Sql query to verify the inserted values from one table(in CSV file) with another table(in sql database)
For example: I have below Values column that is present in once CSV file, after my data migration the values get stored in Results table under Message column.
I need to very whether values(1X,1Y) are inserted in Message record "successfully inserted value 1X"
Values (CSV)
1X
1Y
Results Table(SQL)
CreatedDate Message
2015-08-04 08:45:29.203 successfully inserted value 1X
2015-08-04 08:44:29.103 TEst pass
2015-08-04 08:43:29.103 successfully inserted value 1X
2015-08-04 08:42:29.203 test point
2015-08-04 08:35:29.203 successfully inserted value 1Y
2015-08-04 08:30:29.203 Test Pass
2015-08-04 08:28:29.203 successfully inserted value 1Y
If all values are inserted:
Output:
All values from values table are inserted successfully
Total count of values inserted: 2
If only few values are inserted, example only 1X from Values table is inserted in Message
Example:
Results Table CreatedDate Message
2015-08-04 08:45:29.203 successfully inserted value 1X
2015-08-04 08:44:29.103 TEst pass
2015-08-04 08:43:29.103 successfully inserted value 1X
2015-08-04 08:42:29.203 test point
Output:
All values from values are not inserted successfully in result table.
Total count of values inserted: 1
Missing Values not inserted in results table are: 1Y
I have 2 identical tables one contains current settings, the other contains all historical settings.I could create a union view to display the current values from table A and all historical values from table B, butthat would also require a Variable to hold the tblid for both select statements.
Q. Can this be done with one joined or conditional select statement?
DECLARE @tblid int = 501
SELECT 1,2,3,4,'CurrentSetting'
FROM TableA ta
WHERE tblid = @tblid
UNION
SELECT 1,2,3,4,'PreviosSetting'
FROM Tableb tb
WHERE tblid = @tblid
I have a daily record table (has field Date1, field2Update) and have another table(has field Date2, Flag (value: 0 and non 0 values)
I want to update table1 and set field2Update as somevalue where table2.Flag <> 0
I have a database that has 370 tables that match %_REF_% naming. All of these tables have a column call ds_name.
I need to get a list of all values of ds_name for each table.
I have tables in my database, tblNames1, tblNames2, tblNames3 for ex, and for addresses tblAddresses, can I match the address IDs in the names tables to the address table based on the values of a field? In this case CompanyName. Can they be matched automatically? My issue is that I have a huge CSV file with all the address information that needs to be assigned a foreign key based on the company name field which is also present in all the names tables, all the names are normalized.
View 1 Replies View RelatedNewbie transiting from VBA to TSQL, using SQL Server 2005 Enterprise:Need help to do this:Open Table_AWITH TableADO UNTIL .EOFRead value from TableA.ColumnARun SQL Statement on TableB based on valueMove to the next recordLOOPENDHow do I do this in TSQL?Thanks,Bubbles
View 9 Replies View RelatedHiBelow is a table with sample data to explain what I want to achieve.trackID member markerallele1------- ------ -------------------------------------------------------------------------------------------------------4734 4577 01-D8S1179 13.54734 4577 02-D21S11 12.64734 4577 03-D7S820 2.04734 4577 04-CSF1PO 3.04734 4577 06-TH01 4.04734 4577 07-D13S317 5.04734 4577 08-D16S539 9.04734 4577 11-vWA 6.04734 4577 12-TPOX 7.04734 4577 13-D18S51 1.04734 4578 01-D8S1179 13.04734 4578 02-D21S11 12.64734 4578 03-D7S820 2.04734 4578 04-CSF1PO 4.04734 4578 06-TH01 3.04734 4578 07-D13S317 5.04734 4578 08-D16S539 9.04734 4578 11-vWA 7.04734 4578 12-TPOX 6.04734 4578 13-D18S51 1.0Okay I am trying to compare allele1 values for differences for two orthree different member having the same trackID. The list of markerswould always be same for all members belonging to a particulartrackID.So in the above sample data. The trackID is same which is 4734. Thereare two members 4577 and 4578. The markers are same for each membersbut the corresponding allele1 values are different.I want to compare these two and state whether they are same or not. Iwould like to do this on a form containing subforms.Feel free to ask for clarification.Thank you.
View 2 Replies View RelatedI have a table called ADSCHL which contains the school_code as Primary key and other two table as
RGDEGR(common field as SCHOOl_code) and RGENRl( Original_school_code) which are refrencing the ADSCHL. if a school_code will be updated both the table RGDEGR (school_code) and RGERNL ( original_schoolcode) has to be updated as well. I have been provided a new data that i have imported to SQL server using SSIS with table name as TESTCEP which has a column name school_code. I have been assigned a task to update the old school_code vale ( ADSCHL) with new school_code ( TESTCEP) and make sure the changes happen across all 3 tables.
I tried using Merge Update function not sure if this is going to work.
Update dbo.ADSCHL
SET dbo.ADSCHL.SCHOOL_CODE = FD.SCHOOL_Code
FROM dbo.ADSCHL AD
INNER JOIN TESTCEP FD
ON AD.SCHOOL_NAME = FD.School_Name
I am relatively new to SQL and as a project I have been asked to create the SQL for a simple database to record train details. I want to implement a check constraint which will prevent data from being inserted into a table if the weight of the train is more than the maximum towing weight of the locomotive. FOr instance, I need to add the unladen weight and maximum capacity of each wagon (located in the wagon type table) and compare it against the locomotive maximum pulling weight (the locomotive class table). I have the following SQL but it will not work:
check((select SUM(fwt.unladen_weight+fwt.maximum_payload) from
hauls as h,freight_wagon as fw,freight_wagon_type as fwt,train as t where
h.freight_wagon_serial_number = fw.freight_wagon_serial_number and
fw.freight_wagon_type = fwt.freight_wagon_type and
h.train_number = t.train_number) <
(select lc.maximum_towing_weight from locomotive_class as lc,locomotive as l,train as t where
lc.locomotive_class = l.locomotive_class and l.locomotive_serial_number = t.locomotive_serial_number))
The hauls table is where the constraint has been placed and is the intermediary table between train and freight wagon.
I may not have explained this very well; but in short, i need to compare the sum of two values in one table against a values located in another table...At present I keep getting a message telling me the sub query cannot return more than one row.
Matrix table has ID column and data below.
ID Flag TestDate Value Comment
111 2 12/15/2014 7.5 null
222 2 Null 10 received
Matrix_Current table could have 1 or multiple rows as below.
ID Flag TestDate Value Comment
111 2 01/26/2015 7.9
111 2 02/23/2015 7.9
111 2 04/07/2015 6.8
222 1 null 8 test comment 1
222 3 null 9 test comment 2
When I run below update
UPDATE AM
SET M.Flag = MC.Flag, M.TestDate = MC.TestDate,
M.Value = MC.Value, M.comment = MC.Comment
FROM dbo.Matrix M inner join dbo.Matrix_Current MC on M.ID = MC.ID
Matrix table has value below:
ID Flag TestDate Value Comment
111 2 01/26/2015 7.9
222 1 Null 8 test comment 1
I want to update Matrix table from all row from Matrix_Current, final table would like below:
ID Flag TestDate Value Comment
111 2 04/07/2015 6.8
222 3 Null 9 test comment 2
Hi i am trying to create an insert statement that will insert rows into a table based on the information in the table already.
the table looks like this
Groupid field1 field2
-1 100 200
-1 100 300
-1 300 500
-1 300 600
-1 400 100
the insert looks like this
INSERT Into table1(groupid,field1,field2)
select -1,@passedvalue,field2
from table1
where field1 = @passedvalue1
assume @passedvalue = 700, @passwedvalue1 = 100
Now this is fine however i cannot have a duplicate key (key is comibantion of all 3 fields) thus the first time this runs it works however if it runs again it fails - how can i change the where clause to ignore rows that already exist?
eg if @passedvalue = 300 and passedvalue1 = 500
Hello!
I have 2 tables, one that contains a set of codes and their definitions, and another where each record has a field that contains several of these codes separated by commas:
Tab1
SubCode | Definition
---------------
S100 | Def of S100
S101 | Def of S101
S102 | Def of S102
Tab2
DepID | Purpcode |SubCodes
-----------------------------
1 | P100 | S100,S101,S102
1 | P101 | S100, S101
2 | P101 | S100,S102
I'm trying to create a query against Tab1 so that it retrieves a recordset of Subcodes and definitions based on the contents of the Subcodes field for a record in Tab2. I've tried this using a subquery, as follows:
SELECT SubCode ,Definition
FROM Tab1
WHERE SubjectCode IN
(SELECT CHAR(39) + REPLACE(SubjectCodes, CHAR(44), CHAR(39 + CHAR(44)+ CHAR(39)) + CHAR(39)
FROM Tab2
WHERE DepID = 1 AND PurposeCode = 'P101')
The subquery will return: 'S100','S101' and I expect the final recordset to be:
SubCode | Definition
---------------
S100 | Def of S100
S101 | Def of S101
However, it's not returning any records. If I execute the subquery separately and then plug its results into the main query e.g.
SELECT SubCode ,Definition
FROM Tab1
WHERE SubjectCode IN ('S100','S101')
it returns the expected recordset. Does anyone have any pointers? It's driving me nuts..
Cheers
Greg
Complete DDL, Sample Data, and Query below:
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[SubjectCodeDefinition]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[SubjectCodeDefinition]
GO
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[DepartmentReturn]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[DepartmentReturn]
GO
CREATE TABLE [dbo].[SubjectCodeDefinition] (
[SubjectCode] [varchar] (10) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
[Definition] [varchar] (100) COLLATE SQL_Latin1_General_CP1_CI_AS NULL
) ON [PRIMARY]
GO
CREATE TABLE [dbo].[DepartmentReturn] (
[DeptID] [int] NULL ,
[PurposeCode] [varchar] (10) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
[SubjectCodes] [varchar] (250) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
) ON [PRIMARY]
GO
INSERT INTO SubjectCodeDefinition(SubjectCode, Definition)
SELECT 'S100', 'Definition of Code S100' UNION ALL
SELECT 'S101', 'Definition of Code S101' UNION ALL
SELECT 'S102', 'Definition of Code S102' UNION ALL
SELECT 'S103', 'Definition of Code S103' UNION ALL
SELECT 'S104', 'Definition of Code S104' UNION ALL
SELECT 'S105', 'Definition of Code S105'
GO
INSERT INTO DepartmentReturn(DeptID,PurposeCode,SubjectCodes)
SELECT 1,'P100','S100,S101,S104' UNION ALL
SELECT 1,'P101','S102,S103' UNION ALL
SELECT 1,'P102','S100,S101,S105' UNION ALL
SELECT 2,'P100','S100,S101,S104,S105' UNION ALL
SELECT 2,'P103','S103,S104,S105' UNION ALL
SELECT 3,'P100','S100,S102,S104'
GO
SELECT SubjectCode ,Definition
FROM SubjectCodeDefinition
WHERE SubjectCode IN
(SELECT CHAR(39) + REPLACE(SubjectCodes, CHAR(44), CHAR(39)+ CHAR(44)+ CHAR(39)) + CHAR(39)
FROM DepartmentReturn
WHERE DeptID = 1 AND PurposeCode = 'P102')
I have table A with colums ID and Product. I have table B with ID (same as table A) and revenue of product.
I need to update the field Product of table A with the revenue of table B.
I'm confuse with the update joining both tables. I tried this, but obviously has an error:
Update A set Product=B.Revenue where A.ID=B.ID
I am trying to insert values from a temp table #TableName to a db table.
CATEGORY table- CategoryId, CategoryName, CategoryDescription
Then I did this :
Select CategoryName
into #TableName
from CATEGORY
Now I'm doing this :
Insert into #TestTable values(1,'This is:'+CategoryName)
select CategoryName from #Test
CategoryID right now is not PK.
So, the intention is to insert as many CategoryNames available into TestTable with id 1 and category name edited as shown in Inset statement.
What is wrong with this query. Its not working.
Can someone give me a clue on this. I'm trying to insert values based off of values in another table.
I'm comparing wether two id's (non keys in the db) are the same in two fields (that is the where statement. Based on that I'm inserting into the Results table in the PledgeLastYr collumn a 'Y' (thats what I want to do -- to indicate that they have pledged over the last year).
Two questions
1. As this is set up right now I'm getting NULL values inserted into the PledgeLastYr collumn. I'm sure this is a stupid syntax problem that i'm overlooking but if someone can give me a hint that would be great.
2. How would I go about writing an If / Else statement in T-SQL so that I can have the Insert statement for both the Yes they have pledged and No they have not pledged all in one stored proc. I'm not to familar with the syntax of writing conditional statements within T-SQL as of yet, and if someone can give me some hints on how to do that it would be greatly appriciated.
Thanks in advance, bellow is the code that I have so far:
RB
Select Results.custID, Results.PledgeLastYr
From Results, PledgeInLastYear
Where Results.custID = PledgeInLastYear.constIDPledgeInLastYear
Insert Into Results(PledgeLastYr)
Values ('Y')
I have a table with PO#,Days_to_travel, and Days_warehouse fields. I take the distinct Days_in_warehouse values in the table and insert them into a temp table. I want a script that will insert all of the values in the Days_in_warehouse field from the temp table into the Days_in_warehouse_batch row in table 1 by PO# duplicating the PO records until all of the POs have a record per distinct value.
Example:
Temp table: (Contains only one field with all distinct values in table 1)
Days_in_warehouse
20
30
40
Table 1 :
PO# Days_to_travel Days_in_warehouse Days_in_warehouse_batch
1 10 20
2 5 30
3 7 40
Updated Table 1:
PO# Days_to_travel Days_in_warehouse Days_in_warehouse_batch
1 10 20 20
1 10 20 30
1 10 20 40
2 5 30 20
2 5 30 30
2 5 30 40
3 7 40 20
3 7 40 30
3 7 40 40
how can I update Table 1 to get desired results?
I am pulling down out of range values from a single table on one database to a different table on a different database on a different server (one i have full access to). Basically, it looks something like this:
id1 value1 prev_value1 value2 prev_value2 date prev_date
id2 value1 prev_value1 value2 prev_value2 date prev_date
id3 value1 prev_value1 value2 prev_value2 date prev_date
all the "prev"'s are null. I want to do one do one query that will get me the previous values and dates for each id from the original database. how to do this.
I have 2 tables A, B with 1 to many relationship
Table A(ProductID), TableB(ProductID, FileID)
I need to find only the records in Table A that may have more than one FileIDs in Table B, since some ProductIDS have multiple FileIDs in Table B...
Hi SQL fans,I realized that I often encounter the same situation in a relationdatabase context, where I really don't know what to do. Here is anexample, where I have 2 tables as follow:__________________________________________ | PortfolioTitle|| Portfolio |+----------------------------------------++-----------------------------+ | tfolio_id (int)|| folio_id (int) |<<-PK----FK--| tfolio_idfolio (int)|| folio_name (varchar) | | tfolio_idtitle (int)|--FK----PK->>[ Titles]+-----------------------------+ | tfolio_weight(decimal(6,5)) |+-----------------------------------------+Note that I also have a "Titles" tables (hence the tfolio_idtitlelink).My problem is : When I update a portfolio, I must update all theassociated titles in it. That means that titles can be either removedfrom the portfolio (a folio does not support the title anymore), addedto it (a new title is supported by the folio) or simply updated (atitle stays in the portfolio, but has its weight changed)For example, if the portfolio #2 would contain :[ PortfolioTitle ]id | idFolio | idTitre | poids1 2 1 102 2 2 203 2 3 30and I must update the PortfolioTitle based on these values :idFolio | idTitre | poids2 2 202 3 352 4 40then I should1 ) remove the title #1 from the folio by deleting its entry in thePortfolioTitle table2 ) update the title #2 (weight from 30 to 35)3 ) add the title #4 to the folioFor now, the only way I've found to do this is delete all the entriesof the related folio (e.g.: DELETE TitrePortefeuille WHERE idFolio =2), and then insert new values for each entry based on the new givenvalues.Is there a way to better manage this by detecting which value has to beinserted/updated/deleted?And this applies to many situation :(If you need other examples, I can give you.thanks a lot!ibiza
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