T-SQL (SS2K8) :: Get Recent Changed Value From History Table
Apr 6, 2015
I have a history table with the following values
CREATE TABLE History (SnapShotDate DATETIME, UID VARCHAR(10), DUEDATE DATETIME)
INSERT INTO History VALUES ('03-23-2015','PT-01','2015-04-22')
INSERT INTO History VALUES ('03-30-2015','PT-01','2015-04-20')
INSERT INTO History VALUES ('04-06-2015','PT-01','2015-06-30')
[Code] ....
I need an output in the below format. I need the most recent changed value for any given UID. Need to get the below result
OUTPUT
UID PreviousDueDate CurrentDueDate
----------------------------------------
PT-01 2015-04-20 2015-06-30
PT-02 2015-04-22 2015-04-22
PT-03 2015-04-18 2015-04-22
PT-042015-04-222015-04-18
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Feb 9, 2007
Hi,
My scenario:
I have a master securities table which has 7 fields. As a part of the daily process I am uploading flat files into database tables. The flat files contains the master(static) security data as well as the analytics(transaction) data. I need to
1) separate the master (static) data from the flat files,
2) check whether that data is present in the master table, if not then insert that data into the master table
3) If data present then move that existing record to an history table and then update the main master table.
All the 7 fields need to be checked to uniquely identify a single record in the master table.
How can this be done? Whether we can us a combination of data flow items or write a sql procedure to do all this.
Thanks in advance for your help.
Regards,
$wapnil
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Jun 28, 2014
I have a table history of Employee data.
id | EmpNo | EmpName | MobileNo | Email | EmpSSS | UpdateDate | UpdateUser
I have to make a stored procedure that will show the history and changes made to a given EmpNo, with the UpdateDate, UpdateUser and indicate which field is modified. Ex. Employee Mobile number was changed from '134151235' to '23523657'.
Result must be:
EmpNo | UpdateDate | UpdateUser | Field changed | Change from | change to
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Mar 25, 2015
how to get products on which SalesPerson changed. Here is table with data.
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Jul 15, 2014
I need to get all customer records with the most recent tDate. A customer should never have duplicate tDate records, as only one record per day is allowed per customer, yet there somehow there are duplicates. Given this, I need to get the record with the Max date and Max ID. the ID column is an auto-incrementing Identity column.Below is the code without the Max ID column logic
SELECT tCustID, MAX(tDate) AS tDate--get MAX tDate records
FROM table1
GROUP BY tCustID
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Dec 29, 2014
I'm looking for feedback on a query I've devised to return a numeric value if the 3 most recent executions of a job have failed. The purpose of the query is to server as a custom counter alert for Idera SQL DM, and by definition an SQL Script alert must return a numeric value.
My environment is SQL Server 2008. Note that the job name is hard coded.
;WITH CTE_Restore_JobHistory AS
(SELECT h.[job_id]
,j.[name] as JobName
,h.[message]
,h.[run_status]
[Code] .....
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Nov 5, 2014
The database consists of the following tables:
create table dbo.customer (
customer_id int identity primary key clustered,
customer_name nvarchar(256) not null
)
create table dbo.purchase_order (
purchase_order_id int identity primary key clustered
customer_id int not null,
amount money not null,
order_date date not null
)
Implement a query for the report that will provide the following information: for each customer output at most 5 different dates which contain abnormally high or low amounts (bigger or less than 3 times SDTDEV from AVG), for each of these dates output minimum and maximum amounts as well.
Possible result: [URL] ......
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Jun 9, 2015
I have a product table and my task is to select only the products that had been paid for, but later their status has been changed.
I need to report the original paid date, the most recent status, and most recent updated date. Here is the sample table:
CREATE TABLE #Products (primKey int, productId int, productName varchar(100), productStatus varchar(50), logDate datetime )
Insert into #Products(primKey, productId, productName, productStatus, logDate)
Values
(1, 201, 'pen', 'received', '01/01/2011'),
(2, 201, 'pen', 'sold', '01/02/2011'),
(3, 201, 'pen', 'paid', '01/03/2011'),
(4, 201, 'pen', 'returned', '01/04/2011'),
(5, 201, 'pen', 'refurbished', '01/05/2011'),
(6, 202, 'pencil', 'received', '01/06/2011'),
(7, 202, 'pencil', 'sold', '01/07/2011'),
(8, 202, 'pencil', 'paid', '01/08/2011'),
(9, 201, 'pen', 'sold', '01/09/2011'),
(10, 201, 'pen', 'paid', '01/10/2011')
/* temp table records */
Select * From #Products order by productId
/* The desired outcomes would be showing only the Record 3 and 10.
This is a "fake" query to get the results:
*/
Select * From #Products Where primKey in (3, 10) order by productId
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Aug 12, 2014
I want Compare two Table data and insert changed field to the third table ...
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Aug 27, 2007
I'm trying to create a stored procedure from a join of two tables. One table holds a list of containers, and the other table holds the history of the contents of those containers. All I want is to retrive the most recent history for each container. For example, the containers table has the container number and name, and the history table has the
volume in the container and the date and time of the measurements. There can be any number of measurements, but I only want the most recent one.
Normally, I would just create a cursor that holds a list of the containers and some blank fields, and then loop through it, retrieving the most recent record one by one, but I don't know how to do that in Transact-SQL. Also, I thought maybe some SQL wizard out there might know of a way to do it with a simple select statement.
Geoffrey Callaghan
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Oct 25, 2015
we have a table in our ERP database and we copy data from this table into another "stage" table on a nightly basis. is there a way to dynamically alter the schema of the stage table when the source table's structure is changed? in other words, if a new column is added to the source table, i would like to add the column to the stage table during the nightly refresh.
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Jun 19, 2008
Hi,
I have to create the query in which I have to select complete row records according to the column "time" where the time is most recent entered.
there are columns "username", "bookname", "Time"
a asp 6/4/2008 6:02:00 AM
b sql 6/4/2008 6:04:00 AM
a php 6/4/2008 6:05:00 AM
Navi
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Sep 3, 2007
Given the Patients and PatientVisits tables as per below, how do I obtain the most recent (latest) Weight and Height for each patient as per http://www.hazzsoftwaresolutions.net/selectStatement.htm
The result of the query should only return 3 rows/records,not 5. Thank you. Greg
Code Snippet
select p.ID, p.FirstName,p.LastName,DATEDIFF(year, p.DOB, getdate()) AS age
,pv.WeightPounds, pv.HeightInches
from Patients as p
inner join PatientVisits as pv
ON p.ID = PV.PatientID
order by pv.VisitDate desc
INSERT INTO Patients (ID, FirstName,LastName,DOB)
select '1234-12', 'Joe','Smith','3/1/1960'
union
select '5432-30','Bob','Jones','3/1/1960'
union
select '3232-22','Paul','White','5/12/1982'
INSERT INTO PatientVisits (PatientID, VisitDate,WeightPounds,HeightInches)
select '1234-12', '10/11/2001','180','68.5'
union
select '1234-12', '2/1/2003','185','68.7'
union
select '5432-30','11/6/2000','155','63.0'
union
select '5432-30','5/12/2001','165','63.0'
union
select '5432-30','4/5/2000','164','63.5'
union
select '3232-22','1/17/2002','220','75.0'
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
CREATE TABLE [dbo].[PatientVisits](
[ID] [int] IDENTITY(1,1) NOT NULL,
[PatientID] [nvarchar](50) NULL,
[VisitDate] [datetime] NULL,
[WeightPounds] [numeric](18, 0) NULL,
[HeightInches] [decimal](18, 0) NULL
) ON [PRIMARY]
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May 20, 2015
Is it possible to check/notify if something (record) has changed in the linked table (from linked server) and automatically update table in local one?
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Feb 21, 2014
This is my table:
ID AppName DepCode DepName Group ModifiedDate YearlyAmount
1 Nestle NS Foods Products 01/12/14 451
1 Nestle NS Foods Products 01/17/14 495
2 Oracle OR Software Info 01/24/14 279
2 Oracle OR Soft & IT Info 01/26/14 310
2 Oracle ORL Software Info 01/25/14 219
2 Oracle ORL Soft IT 01/28/14 600
MonthlyAmount Funded AppCategory Research
37.5623 Yes NE NA
41.2365 No N NA
23.2568 Yes OR InProgress
25.8333 Yes ORL NA
18.2189 Yes SOF Approved
50.0000 No IT RejectedExpected Output:
ID AppName DepCode DepName Group ModifiedDate YearlyAmount
1 Nestle NS Foods Products 01/17/14 946
2 Oracle OR Soft & IT Info 01/26/14 589
2 Oracle ORL Soft IT 01/28/14 819
MonthlyAmount Funded AppCategory Research
78.7988 No N NA
49.0901 Yes ORL NA
68.2189 No IT Rejected
I want to pick the recent modified date for DepCode and sum Yearly and Monthly Amount. I have tried this query and not able to get the output. This is the single table.
select B1.[ID], B1.[AppName], B1.[DepCode], B1.[DepName], B1.[Group],
B2.ModifiedDate, B2.YearlyAmount, B2.MonthlyAmount,
B1.[FuBded], B1.[AppCategory], B1.[Research]
FROM Business B1
INNER JOIN
(select [ID], MAX(ModifiedDate) as ModifiedDate, SUM(YearlyAmount) as YearlyAmount,
SUM(MonthlyAmount) as MonthlyAmount
from Business
Group by ID) B2
ON B1.ID = B2.ID AND B1.ModifiedDate = B2.ModifiedDate
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Nov 6, 2007
If I have a table structure similar to the following, how might I query it to obtain the Transaction ID, Transaction Date, and Customer Name for the most recent transaction per customer only:
TransactionTable:
TransactionID TransactionDate TransactionType CustomerName
1 10/1/07 1 Bob
2 8/30/07 2 Janet
3 9/17/07 1 Mike
4 9/25/07 1 Bob
The following query will return all records in the table other than Janets...not what I want:
SELECT Transaction ID, TransactionDate, CustomerName
FROM TransactionTable
WHERE TransactionType = 1
ORDER BY TransactionDate DESC
The following query will return all records in the table other than Janets again, because DISTINCT will use the combo of TransactionID, TransactionDate, and Customer name for uniqueness...not what I want:
SELECT DISTINCT Transaction ID, TransactionDate, CustomerName
FROM TransactionTable
WHERE TransactionType = 1
ORDER BY TransactionDate DESC
The results set I'm looking for would be the following, where only the most recent entry per customer with TransactionType 1 is returned (i.e. one record for Bob):
TransactionTable:
TransactionID TransactionDate CustomerName
1 10/1/07 Bob
3 9/17/07 Mike
I believe I need an appropriate subquery to yield the results I desire, but can't sort out what it is? I do not want to execute multiple queries but subqueries are fine. Unfortunately there's probably an easy answer that my brain is not currently generating. Any help would be appreciated.
Note, this is not a real table, but a sample to illustrate the concept for the query I need.
Thanks.
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Sep 19, 2015
The "Last" function in the query below (line 4 & 5) is not exactly what I'm after. The last function finds the last record in that table, but i need to find the most recent record in the table according to a date field.
Code:
SELECT
tblinmate.statusid,
tblinmate.activedate,
Last(tblclassificationhistory.classificationid) AS LastOfclassificationID,
Last(tblsquadhistory.squadid) AS LastOfsquadID,
tblperson.firstname,
tblperson.middlename,
tblperson.lastname,
[Code] ....
The query below finds the most recent record in a table according to a date field, my problem is i dont know how to integrate this Query into the above to replace the "Last" function
Code:
SELECT a.inmateID,
a.classificationID,
b.max_date
FROM (
SELECT tblClassificationHistory.inmateID,
tblClassificationHistory.classificationID,
[Code] .....
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Sep 29, 2015
Empid 1 has 2 entries for the date 09/01/2015 and my left join returns both of those entries. What do I need to alter to make it so that only the most recent entry is returned not both entries?
Create Table #one
(
empid varchar(100)
,empbadgeid varchar(100)
,emplunchtime decimal(18,4)
,empbreaktime decimal(18,4)
,empworktime decimal(18,4)
[code]....
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Apr 15, 2015
Have a table that list item#, date the standard cost went into effect and the standard cost. How do I find the difference in StdCost on the last EffectiveDate and second to last EffectiveDate. 5.59 (01/05/2015) minus 5.81 (09/29/.014) = -.22.
Item# EffectiveDate StdCost
1152 01/01/2009 5.50
1152 09/29/2014 5.81
1152 04/04/2011 5.56
[code]....
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Mar 29, 2006
Code:
create table Channels (ChannelID int(5), other varchar(255));
create table Blogs (BlogID int(5), BlogXMLPath varchar(255));
create table BlogAssociations (BlogID int(5), ShowID int(5), ChannelID int (5));
create table Episodes (EpisodeID int(6), BlogID int(5), ShowID int(5), ChannelID int(5), Other varchar(30));
insert into Channels values (1, 'Channel 1');
insert into Channels values (2, 'Channel 2');
insert into Channels values (3, 'Channel 3');
insert into Channels values (4, 'Channel 4');
insert into Blogs values ('1', 'blah');
insert into Blogs values ('3', 'blah');
insert into Blogs values ('4', 'blah');
insert into Blogs values ('12', 'blah');
insert into Blogs values ('34', 'blah');
insert into Blogs values ('35', 'blah');
insert into Blogs values ('67', 'blah');
insert into Episodes values (1, 3, '', '', 'Episode 1, blog 3');
insert into Episodes values (2, 3, '', '', 'Episode 2, blog 3');
insert into Episodes values (3, 3, '', '', 'Episode 3, blog 3');
insert into Episodes values (4, 3, '', '', 'Episode 4, blog 3');
insert into Episodes values (5, 1, '', '', 'Episode 5, blog 1');
insert into Episodes values (6, 1, '', '', 'Episode 6, blog 1');
insert into Episodes values (7, 1, '', '', 'Episode 7, blog 1');
insert into Episodes values (8, 4, '', '', 'Episode 8, blog 4');
insert into Episodes values (9, 4, '', '', 'Episode 9, blog 4');
insert into Episodes values (10, 4, '', '', 'Episode 10, blog 4');
insert into Episodes values (11, 4, '', '', 'Episode 11, blog 4');
insert into Episodes values (12, 4, '', '', 'Episode 12, blog 4');
insert into Episodes values (13, 12, '', '', 'Episode 13, blog 12');
insert into Episodes values (14, 12, '', '', 'Episode 14, blog 12');
insert into Episodes values (15, 12, '', '', 'Episode 15, blog 12');
insert into Episodes values (16, 12, '', '', 'Episode 16, blog 12');
insert into Episodes values (17, 12, '', '', 'Episode 17, blog 12');
insert into Episodes values (18, 34, '', '', 'Episode 18, blog 34');
insert into Episodes values (19, 34, '', '', 'Episode 19, blog 34');
insert into Episodes values (20, 34, '', '', 'Episode 20, blog 34');
insert into Episodes values (21, 34, '', '', 'Episode 21, blog 34');
insert into Episodes values (22, 35, '', '', 'Episode 22, blog 35');
insert into Episodes values (23, 35, '', '', 'Episode 23, blog 35');
insert into Episodes values (24, 35, '', '', 'Episode 24, blog 35');
insert into Episodes values (25, 35, '', '', 'Episode 25, blog 35');
insert into Episodes values (26, 67, '', '', 'Episode 26, blog 67');
insert into Episodes values (27, 67, '', '', 'Episode 27, blog 67');
insert into Episodes values (28, 67, '', '', 'Episode 28, blog 67');
insert into Episodes values (29, 67, '', '', 'Episode 29, blog 67');
insert into Episodes values (30, 67, '', '', 'Episode 30, blog 67');
insert into BlogAssociations values (3,'',1);
insert into BlogAssociations values (12,'',1);
There is my above sql script, i'm currently using mysql at home to test things but will convert to work in mssql.
I need to get associated BlogID for Certain ChannelID from the BlogAssociations table.
Then using those BlogID's that it finds for let just say ChannelID "1" list off the 3 most recent EpisodeID's from the Episodes Table per each BlogID.
So if ChannelID "1" has four BlogID's associated with it then in the Episodes table list off the recent 3 EpisodeIDs for BlogID "3", then the 3 most recent EpisodeIDs for BlogID "5" and so on and so on.
I have this which kind of does what I want:
Code:
select
e.BlogID, e.EpisodeID, e.other
FROM
episodes e, BlogAssociations ba
WHERE
e.BlogID = ba.BlogID and ba.ChannelID = '1'
ORDER BY
e.EpisodeID DESC;
It returns:
Code:
+--------+-----------+---------------------+
| BlogID | EpisodeID | other |
+--------+-----------+---------------------+
| 12 | 17 | Episode 17, blog 12 |
| 12 | 16 | Episode 16, blog 12 |
| 12 | 15 | Episode 15, blog 12 |
| 12 | 14 | Episode 14, blog 12 |
| 12 | 13 | Episode 13, blog 12 |
| 3 | 4 | Episode 4, blog 3 |
| 3 | 3 | Episode 3, blog 3 |
| 3 | 2 | Episode 2, blog 3 |
| 3 | 1 | Episode 1, blog 3 |
+--------+-----------+---------------------+
But as you can see it lists off 5 of the Episodes for BlogID "12", I only want the most recent 3 as previously stated. It also lists off more than 3 Episodes for BlogID "3". How in the world do I go about doing this?
I'm making this a stored procedure so I can't use php otherwise I wouldn't even be posting
Thanks so much!
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Jul 23, 2014
I have the following tables in my DB
Employee table - This table has EmployeeID, Name, DOB.
EmployeeDesignation table - 1 Employee can have many designations with each having an effective date. There is no flag to indicate which among multiples is the current entry. You can only figure it out by the newest/oldest EffectiveDate. I want to get the most recent and the oldest for each employee.
EmployeeSalaryHistory table - Structure/Design is similar to EmployeeDesignation table. I want to get the starting salary and current salary for each employee.
I want my query to output me the following fields...
EmployeeID
EmployeeName
EmployeeDOB
EmployeeStartingDesignation
EmployeeCurrentDesignation
EmployeeStartingSalary
EmployeeCurrentSalary
Here is a piece of code to generate sample data sets
DECLARE @Employee TABLE (EmployeeID INT, EmployeeName VARCHAR (100), EmployeeDOB DATE)
INSERT @Employee VALUES (101, 'James Bond', '07/07/1945'), (102, 'Tanned Tarzan', '12/13/1955'), (103, 'Dracula Transylvanian', '10/22/1967')
DECLARE @EmployeeDesignation TABLE (EmployeeID INT, Designation VARCHAR (100), EffectiveDate DATE)
INSERT @EmployeeDesignation VALUES (101, 'Bond Intern', '01/01/1970'), (101, 'Bond Trainee', '01/01/1975'), (101, 'Bond...James Bond', '01/01/1985')
[Code] ....
Currently, I have a query to get this done which looks as below. Since I have more than 8K employees with each having multiple Designation and Salary entries, my query is taking forever.
selecte.EmployeeID, e.EmployeeName, e.EmployeeDOB,
(select top 1 Designation from @EmployeeDesignation ed where ed.EmployeeID = e.EmployeeID Order By EffectiveDate) EmployeeStartingDesignation,
(select top 1 Designation from @EmployeeDesignation ed where ed.EmployeeID = e.EmployeeID Order By EffectiveDate Desc) EmployeeCurrentDesignation,
[Code] ....
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Mar 1, 2004
Hi all,
How can i get the information as to when was the last my particular table structure was changed (for ex. adding of a column/dropping a column)
Pls let me know
TIA
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Jul 20, 2005
When I create tables in SQL I can specify dbo as the owner using thesyntax below but when using the upsize wizard in Access 2000 I owneverything. Is there a way that the system administrator can changeownership after the fact?CREATE TABLE dbo.mytable (c1 int not null)Thank You,Randy KJoin Bytes!
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Mar 6, 2008
Ha all again.
I have this issue:
I have 2 tables:
t1 (id,field1,field2,field3)
and t2 (id,field_name,field_value)
is possible with trigger to insert only changed fields on t1 to t2 like
(changing field1 on t1 with id 21 cause a new row in t2 with fields id=21,field_name="field1", field_value=field1.value)
i hope you understand what i look for.
Is this trigger solution ?
CREATE TRIGGER MAP_CHANGESON t1AFTER INSERT,UPDATEBEGIN
DECLARE @ID SOMEDATA;DECLARE @FIELD1 SOMEDATA;DECLARE @FIELD2 SOMEDATA;DECLARE @FIELD3 SOMEDATA;SET @ID=(SELECT ID FROM INSERTED)SET @FIELD1=(SELECT FIELD1 FROM INSERTED AS T1,DELETED T2 WHERE T1.ID=T2.ID AND T1.FIELD1<>T2.FIELD1)SET @FIELD2=(SELECT FIELD2 FROM INSERTED AS T1,DELETED T2 WHERE T1.ID=T2.ID AND T1.FIELD2<>T2.FIELD2)SET @FIELD3=(SELECT FIELD1 FROM INSERTED AS T1,DELETED T2 WHERE T1.ID=T2.ID AND T1.FIELD3<>T2.FIELD3)IF @FIELD1<>NULL INSERT INTO T2 (ID,FIELD_NAME,FIELD_VALUE) VALUES (@ID,'FIELD1','@FIELD1')IF @FIELD2<>NULL INSERT INTO T2 (ID,FIELD_NAME,FIELD_VALUE) VALUES (@ID,'FIELD2','@FIELD2')IF @FIELD3<>NULL INSERT INTO T2 (ID,FIELD_NAME,FIELD_VALUE) VALUES (@ID,'FIELD1','@FIELD3')RETURNEND
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Mar 11, 2014
I am querying a table log file in an attempt to get the most recent status of an item. The items can have a variety of different statuses:
(A = Active, R = Repeat, L = liquidation......)
Here is a sample of the data I am trying to report off of:
CREATE TABLE [dbo].[item_status](
[item_number] [varchar](20) NULL,
[sku] [varchar](100) NULL,
[Field_Name] [varchar](50) NULL,
[Old_Value] [varchar](150) NULL,
[New_Value] [varchar](150) NULL,
[Change_Date] [smalldatetime] NULL
) ON [PRIMARY]
[code]...
I have tried join to the same table - but I am still unable to get it to work.
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Jul 23, 2005
Hello-I'm fairly new to writing SQL statements and would greatly appreciatesome help on this one.I'm working on a project for a non-profit that I volunteer for. Partof the database tracks membership using tables like this:PersonInfo-------------------PersonID (primary key)FirstNameLastNameetc..PeopleMemberships-------------------PPLMembershipIP (primary key)PersonIDMembershipTypeIDFeePaidMembershipTypes--------------------MembershipTypeID (primary key)MembershipYearStandardFeeMembershipDescription (varchar)Just because a person is in PersonInfo, doesn't mean they have anythingin PeopleMemberships (they can be in the databse for other reasons andnot have or have ever had a membership).Membership fees vary by year and type of membership and they want toretain a history of a person's memberships.What I'm looking to do here is write a query (a view in SQL Server)that will return the following InfoPersonID, MostRecentMembershipYear, FeePaidForThatMembership,DescriptionOfThatMembershipI'm thinking that I'd use max(MembershipYear), but that requires groupby for the other columns, so I'm getting all of the people'smemberships returned.I'm pretty sure this can be best done with a subquery, but I'm not surehow.Can someone please point me in the right direction or provide a samplethat I can learn from?Kindly,Ken
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Jan 11, 2008
I have a database design question. There're lots of ways to rome they say, and I want to hear what you think of this way.
Government supplies wheel chairs (and thinks alike) to people who need them. They stay in possesion of the (local) government and are distrubuted by a company X.
So we have Tools (Wheelchairs) and Users (of wheel chairs). The life-cycle of a wheel chair is that more than one user while use it over time.
I want to keep track of which users used a instance of a wheelchair.
No there's a developer who likes to put this in one table. (the chair and it's user) in a way like this
UID, WheelChairId, UserId, OwnerId, SerialNumber, BeginDateTime, EndDateTime, SomeOtherColumns
The UID is unique, the WheelChairId is a GUID which is Unique per wheelchair, but can have mutliple records in the table with no overlap.
If one of the values of the columns is changed a new record is made with the same wheelchair and a new begin date (the closed record gets an Enddate). So history is made automaticaly. By using the right query's I can see what users uses the chair in what period of time. But also changed ownerships and other changes in Someother columns overtime.
Is this a good or a common practice? Why use it, or stay away from it?
Henri
~~~~
There's no place like 127.0.0.1
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Jan 22, 2008
Hi there!
I'm working on an application designed like this:
There's a table "DailyTransations" (DT) containing daily transactions...
Then there's an archive table "TransationsArchive" (TA) with the exact same structure.
When a record is inserted in DT, it is also in TA (via a trigger) and the reporting is done against TA.
Now for performance issues, we delete from DT the records older than 2 days since they are not needed for processing.
First, what do you think of that implementation?
We thought about using partitions based on the transaction date and completely eliminate TA, but it seems once a record is assigned to a partition, it is not moved automatically...
What is the common solution for this need?
Thanks
Frantz
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Jan 30, 2006
Hi..
I got 10 Tables with data in it for 100 Loans. The data can be Good and Bad .....
I had a Update Proc which Updates the 10 tables with the Good data what ever i pass...for this 100 Loans
Tha Proc will update the existing data in all tables whether it is Good or Bad Data.
when the updating is completed I want to know what are the Loans that were updated where there is a Bad Data in atleast one Field of the 10tables.
I don't want to check field by field in each table.... if there is a bad data and my proc updated with a Good Data i want to know that Loan.
Can any one has an idea on this,,,,
Thanks
Bob
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Feb 28, 2008
Hi,
I have a small question regard how to find out if a specific table has chanced.
Is there any (sql)function inside MSSQL2005 that I can use to find if a spesific table has changed? I have heard of timestamp, but I don't know if that will solve my problem? Is there any thing in the sys.tables that kan help me, just do a fast query and check if a table has changed?
I'm developing a web-application with AJAX.NET, and I have UpdatePanels with datalist. When the tables in the db gets big the application is henging for a sec or two when it receiving the data, and when the timer (refresh rate) is 2 min it is not good! So my plan is to check if the table has chanced since last transfer of data, and if it has it will download the data, if not do nothing.
Jonny
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Nov 15, 2007
Hi all,
this is more of a design issue for a History table.
Suppose if i have a transaction table and then based on the transactions i want to keep a history of those do i need to define Primary Key and Foreign Key for history table.
Regards,
General Problem
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Feb 8, 2007
I am running a website of crossword puzzle and Sudoku games. The website is designed to be:
There are 20-30 games onlines each day.
Every registered user could play and submit the game to win scores.
For each game, every registered user could get the score for ONLY one time. i.e., No score will be calculated if the user had finished the game before.
To avoid wasting time on a game finished before, user will be notified with hint message in the page when enter a already finished game.
The current solution is:
3 tables are designed for the functions mentioned above.
Table A: UserTable --storing usering information, userid
Table B: GameList --storing all the game information.
Related fields:
GameID primary key
FinshiedTimes recording how many times the game has been finished
Table C: FinishHistory --storing who and when finished the game
Related fields:
GameID ID of the game
UserID ID of the user
FinishedDate the time when the game was finshied
PS: Fields listed above are only related ones, not the complete structure.
Each time when user enters the game, the program will read Table B(GameList), listing all the available game and the times games have been finished. User could then choose a desired game to play.
When user clicks the link and enter a page showing the detail content of the game, the program will read Table C(FinishHistory) to check whether user has finished this game before. If yes, hint message will be shown in the page.
When user finishes the game and submit, the program will again read Table C(FinishHistory) to check whether user has finished this game before. If yes, hint message will be shown in the page. If no, user will get the score.
Existing Problems:
With the increase of game and users, the capacity of Table C(FinishHistory) grows rapidly. And each time when a game is loaded, the Table C will be loaded to check, and when a game is submitted, the Table C will be loaded to check again. So it is only a time question to find out Table C to become a bottleneck.
Does any one here have any good suggestions to change / re-invent a new structure or design to avoid this bottleneck?
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Nov 3, 2015
I have order history table that tracks who worked on a order
ID. ColA. ColB. ColC
1. Process 1234
2. Work. 7666
3. Return. 6789
4. Work. Null Role1
5. Return. 6538
I want a query to return recent colB or ColC where colA or colB are not null. In this case row 4
I have order history table that tracks who worked on a order
Another example
ID. ColA. ColB. ColC
1. Work. 1234
2. Process. 7666
3. Return. 6789
I want a query to return most recent colB or ColC where colB or ColC are not null. In this case row 2
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