SQL Server 2008 :: Returning Unique Rows - Read Date Field?
Jul 26, 2015
I have the following query:
Select p.Id [SenderId], p.Username, up.PhotoId,
CASE
WHEN mr.ReadDate is null then 1 -- New message
ELSE 0 -- Message has been read
END AS NewMessage,
p.LastLoggedIn, p.LoggedIn
[Code] ....
The above query returns me all messages (inbox functionality) that have been sent to mr.ReceipientId, the issue I have is when I send another email to the recipient the readdate field will be null, and the other emails linked to the recipient which have also been sent via me will have a readdate date. This causes duplicate rows to appear due to the case statement, I'm trying to figure out if / how it is possible to only display the one row per conversation and set newmessage to 1 if there is an un-read message otherwise show 0 ?
Here's my statement below. What I'm trying to get is joining the name column in master.sys.databases with a sub query for the database name, file location and backup start date from the MSDB database. The reason for this, if a new database has never been backed up, It should be returning as a NULL value, which is my goal. However, I'm getting multiple results for the backups.
select CONVERT(CHAR(100), SERVERPROPERTY('Servername')) AS Server,a.name,File_Location=b.physical_device_name,backup_start_date=max(backup_start_date) from master.sys.databases a left join(select c.database_name,backup_start_date=max(backup_start_date),b.physical_device_name from msdb.dbo.backupmediafamily b join msdb.dbo.backupset c on c.media_set_id=c.backup_set_id where c.type='D'
I have a table in Access 2007 that has about 30 field names and I want to have a count of how many unique rows there are in each field. I want to have these results put into another table that will just have the field name and then the count of how many unique rows there are.
I have code in VBA that will loop through my SQL and change out the field name, but I can't seem to get the SQL right before I can start looping it. For just one field name this would be what I have to count the unique names...
So far I have this:
INSERT INTO newtable COUNT(*) FROM (SELECT Raw_Table.FieldName, COUNT(Raw_Table.FieldName) AS CountOfFieldName FROM Raw_Table GROUP BY Raw_Table.FieldName);
I have a table like the following (with much more data, but the concept is the same) with Dates and Actions for People and a column called Action with beginning Dates and end dates.
(I attached a picture because I could not figure out how to Format it)
begin Date end Date Name
begin 2014-10-15 end 2014-10-31 phil begin 2014-09-18 end 2014-09-30 phil begin 2014-08-21 end 2014-08-23 John
I need the query to be like this. The idea is to have the query grab the next 'END' not all Ends, which my attempts have done i.e. I get not just the closest end to the begin date, but ALL Ends with the same Person.
I Need it to look like this:
begin Date end Date Name
begin 2014-10-15 end 2014-10-31 phil begin 2014-09-18 end 2014-09-30 phil begin 2014-08-21 end 2014-08-23 John
There can be different People so the query Needs to return the beginning and end rows for the Person in sequential order.I can't figure out how to select only the 'next' end. My query always gets 'end' values that have a 'begin'. I
I am working on a software primarily related to accounting with visual basic
Many of the problems and proposed several solutions for running sum, but I have read almost all of these interpretations,
have applied when running sum is a unique ID field. but almost all of the functioning of accounting reports are in chronological order. So he questioned what was the balance on 05.05.2012.
ID of the process is done, if the user enters a process backward a few things since then, the transaction date is old, but the ID is new, are experiencing problems. eg
ID DATE DEBIT CREDIT BALANCE
1 02.02.2012 100.00 0.00 100.00
6 04.04.2012 0.00 150.00 -50.00
3 02.05.2012 70.00 0.00 20.00
4 02.05.2012 80.00 0.00 100.00
2 06.06.2012 120.00 0.00 220.00
must balance the figure above.
if ID = 2 record, the record date 06/06/2012 and if the ID = 6, date 04/04/2012, the date the order is made if the listing is experiencing trouble getting balance. 2 records in the same day when the balance at worst formula breaks down. The big point is that I hang out in my project.
the only solution is to use a temporary table or writing about it in Visual Basic seems to calculate. the use of temporary table is not a solution, but unfortunately also very fast.
I have a equipment table and the equipment has a coding for each place / location or custody it has had during its life. I need to select the latest (newest) row for each piece of equipment by getting the newest from_date and to_date field combination.The following is an example. I know how to get MAX date for one column but not with two columns (from and to DATES).
I am having issues trying to write a query that would provide me the unique GUID numbers associated with a distinct PID if the unique GUID's > 1. To summarize, I need a query that just shows which PID's have more than one unique GUID. A PID could have multiple GUID's that are the same, I'm looking for the PID's that have multiple GUID's that are different/unique.
Would anyone be able to point me in the right direction for creating a procedure to archive rows using a DATE field value as the determinant for selecting the rows to be moved to a backup table?
I'd really appreciate any assistance that anyone can provide.
need help how to archiv table to another table with unique number for all rows once + date time (not the second only day time +minute) i need whan i insert to the another table add 2 more fields (unique number , date_time )
this is the table 1 i select from ID fname new_date val_holiday ----------------------------------------------------
this is the table 2 i insert into ---------------------------------- ID fname new_date val_holiday unique number date_time --------------------------------------------------------------------------------------------------------------------
for evry archiv table to another table (insert) i need to get a unique number + date time (not the second only day time +minute)
next insert ...... ID fname new_date val_holiday unique number date_time --------------------------------------------------------------------------------------------------------------------
next insert ...... ID fname new_date val_holiday unique number date_time --------------------------------------------------------------------------------------------------------------------
We currently have an application whereby the user will come along sign up add some information about them, choose what interests / hobbies they're in to and then click save.After completing the sigh up they're able to search for other individuals within locations (look at this functionality as a dating site) We currently have a stored procedure whereby when the user clicks Advance Search they fill in all the fields they filled in when signing up and when they click search we return all users that match the data the user has selected. This part is working correctly.
The issue im having is extending this stored procedure to take a user defined table type which has two columns UserId and ActivityId both columns are nullable.This user defined table type is referred to in two places, when the user signs up and when they do an advance search.When the user does an advance search he / she can choose a list of hobbies / interests this will then be passed in to the database and I will join on my User_Activities table to find the users that have the Activities passed in.When I join on this table I get duplicate records purely because one user may have 5 - 10 activities depending on how active the individual is. My current stored procedure looks like this
@Ambition int = null, @Body int = null, @Diet int = null, @Drinking int = null, @Ethnicity int = null, @Exercise int = null, @HeightFrom int = null,
[code]...
So my question is how can I select all users that match the criteria passed in, as well as finding the users that match the activities passed in (the user can either match all of them or a minimum of 1). Also my User_Activities has two columns UserId and ActivityId identical to the user defined table type
We have a stock code table with a description field and a brand field - when the data was entered, some of the records were entered with the brand field in the description field.
ie. Code Description Brand ABC1 BLANK DVD SONY ABC2 SONY BLANK DVD SONY
what I need to do is identify where the Brand is in the Description field ...
I've a excel spreadsheet with 650 records with unique PONumbers. I need to pull data from SQL server based on the PONumbers. I don't want to run select statement 650 times. How do I retrieve the records in efficient way?
I am experimenting with using CDC to track user changes in our application database. So far I've done the following:
-- ENABLE CDC ON DV_WRP_TEST USE dv_wrp_test GO EXEC sys.sp_cdc_enable_db GO
-- ENABLE CDC TRACKING ON THE AVA TABLE IN DV_WRP_TEST USE dv_wrp_test
[Code] ....
The results shown above are what I expect to see. My problem occurs when I use our application to update the same column in the same table. The vb.net application passes a Table Valued Parameter to a stored procedure which updates the table. Below is the creation script for the stored proc:
SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO
if exists (select * from sysobjects where id = object_id('dbo.spdv_AVAUpdate') and sysstat & 0xf = 4) drop procedure dbo.spdv_AVAUpdate
[Code] ....
When I look at the results of CDC, instead of operations 3 and 4, I see 1 (DELETE) and 2 (INSERT) for the change that was initiated from the stored procedure:
-- GET CDC RESULTS FOR CHANGES TO AVA TABLE USE dv_wrp_test GO SELECT * FROM cdc.dbo_AVA_CT GO
--RESULTS SHOW OPERATION 1 (DELETE) AND 2 (INSERT) INSTEAD OF 3 AND 4 --__$start_lsn__$end_lsn__$seqval__$operation__$update_maskAvaKeyAvaDescAvaArrKeyAvaSAPAppellationID --0x0031E84F000000740008NULL0x0031E84F00000074000230x02119Test26NULL --0x0031E84F000000740008NULL0x0031E84F00000074000240x02119Test36NULL --0x0031E84F00000098000ANULL0x0031E84F00000098000310x0F119Test36NULL --0x0031E84F00000098000ANULL0x0031E84F00000098000420x0F119Test46NULL
Why this might be happening, and if so, what can be done to correct it? Also, is there any way to get the user id associated with the CDC?
After running geography::Point(Latitude, Longitude , 4326) on the latitude and longitude provided for each location, my Geography column for each row is populated with the following:
I'm in a project to replicate a database from the production environment to another sql server.
The idea is use it for some biggest querys because in the production database we had experimenting various problems. What is the best way for do it? Transactional replication? Log Shipping? I'm reading absolutely everything but I can not get decide.
Both servers are SQL Server 2008 R2 and they are in the same LAN.
As you can I have a uniqueidentifier (UniqueId) column which I populate with NewID() I'm trying to return this as I need it for other functionality of the website but I can't figure out how I can get it after the insert has completed?
Requirements • ALPHANUMERIC FORMAT – > AA00AA00………..ZZ99ZZ99 Last 8 bytes will alternate between 2 byte alpha/2 byte numeric • Generate from Alphabets – A through Z Numbers -0 to 9 • Generate Unique Sequence (No Duplicates). • Must Eliminate letters I and O
Output Expected • AA00AA00………..ZZ99ZZ99 • Using 24 alphabets & 10 digits , 24*24*10*10*24*24 = 3 317 760 000 records
Below is my Sql Function -
CREATE function [dbo].[SequenceComplexNEW] ( @Id BIGINT ) Returns char(8)
1 is with only one field: numerator 2ed is (for example) sales information.
I need to export (using SP) the sales information with unique numerator per line. So, I need to get the value from table 1 (numerator), I need to promote the numerator by 1 for every line, and I need to update the first table (numerator) (as i need to keep it updated for the next run).
At the next run I need to get again the updated numerator from the first table, and so on...
I was given a 2 GB XML file without an XSD. I need to find the element names. I know how to do that using openxml but it takes forever on a file this large. Is there a faster way to do it using xquery?
I have a requirement to read a value from table and increment it by 1. There can be multi-threads doing the same operation and would need a ROW LOCK so that read and write both are atomic. How can i put an exclusive lock on the row before I read the value from the table.
CREATE TABLE [dbo].[tblOnboardingSequence]( [OnboardingSequenceID] [uniqueidentifier] NOT NULL, [Name] [nvarchar](255) NOT NULL, [NextNumber] [bigint] NOT NULL, CONSTRAINT [PK_OnboardingSequence] PRIMARY KEY CLUSTERED( [OnboardingSequenceID] 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
My Stored Procedure has below logic
DECLARE @NextNumber BIGINT ----------- Acquire row lock here SELECT @NextNumber = NextNumber FROM tblOnboardingSequence WHERE Name = 'TPO' UPDATE tblOnboardingSequence SET NextNumber = @NextNumber + 1 WHERE Name = 'TPO' ----------- Release row lock here
I would like to have a row lock for the row having Name "TPO" before SELECT query and release after UPDATE query. What si the best way to deal with this?
way to read data from database already stored as question marks .that because by mistake i insert the data "arabic" from the VS as sqltext but the field in the database is nvarchar now i want to get the data back.
I'm seeing where previous developers have used a single stored procedure for multiple reports, where each report required different columns to be returned. They are structured like this:
CREATE PROCEDURE dbo.GetSomeData (@rptType INT, @customerID INT) AS BEGIN IF @rptType = 1 BEGIN SELECT LastName, FirstName, MiddleInitial
[Code] ....
As you can see, the output depends on the given report type. I've personally never done this, but that's more because it's the way I learned as opposed to any hard facts to support it.
I have a stored procedure that updates a table. I also have an UDF that allows dirty reads (nolock).
What's the precedence level in SQL server? If I add xlock,rowlock to the update statement, will the dirty read wait for the update transaction to commit, or will it perform a dirty read regardless of the locking scheme in the update statement?
We have many users with a mobile application running SQL Mobile and using merge replication to get data back to the SQL 2008 R2 database. This has worked very well for many years.
We now have a requirement to have this data reported on using Reporting Services. This is where it gets messy.
Due to a limitation of Report Builder(see this blog) we cannot provide access to users for creating their own reports. The report database is remote from the host and there is no VPN.
We hit upon the idea of creating an almost identical publication but the articles as read-only. It was only after this was done that we started having trouble with our existing mobile users.
It seems that a published article is EITHER Bi-directional OR Read-only even if they are in separate publications.
I then thought of using Transactional Publication but this too is blocked on creation with "automatic identity range support is useful only for publications that allow updating subscribers"(Merge and Transactional publication are mutually exclusive)
So in the final analysis is there a way for me to have merge replication AND some other form of SQL replication/data transfer that can have the same data transmitted readonly to a separate full SQL server database?
For this id: 0793319, my beginning date is 2011-09-06
108203492014-09-022015-06-30 208203492013-09-032014-09-01 308203492012-09-042013-09-02 408203492011-12-122012-07-03--not a continuous date range
For this id: 0793319, my beginning date is 2012-09-04
108203492014-09-022015-06-30
For this id: 0820349, my beginning date is 2014-09-02
To find continuous date, you look at the beginning date in row 1 and end date in row 2, then if no break in dates, row 2 beginning date to row 3 end date, if no break continue until last date There could multiple dates up to 12 which I have to check for "no break" in dates, if break, display beginning date of last continuous date.
