I have implemented a script to perform a MD5 hash on each row processed by the SSIS package so that it can be compared with a stored value to see if there has been a change in the record. This package processes over 1 million rows. In 12 of these rows I get a hash value that is different than the stored value despite the fact that the rows "look" identical. Curious about this, I used the both the CheckSum and Binary_Checksum feature from t-sql to check the rows and they both show the identical checksum value. I have exported the rows into text and did a compare and the records are identical. I assume there must be some hidden characters that is causing the hash to be different, has anyone else run into this issue? Any help is much appreciated.
I have a SSIS package that dumps data from an internal table to a flat file output using standard data flow tasks. The entire table is output - no special SQL. Most of the time the records are placed in the output file in the same order as the internal DB table, but occasionally the order appears to be more random. When that happens, the record order in the internal table is correct - it is just the output.
I can find no properties that seem to affect this. I would appreciate any hints and advice that anyone can give me. Has anyone else encountered this same problem?
Here what I want to accomplish, I have table that has 15 column one of the columns is ClientID that is about max 45char. I want to be able to hash on the column and return the hash value in a new column call ClientID_Hash. Is this possible?
Dear Techies,I making one stored procedure, which does some operation based on aninterface hash (#) table ---- name #mydata.This stored has two section of code (seperated by parameter value 0and 1)But hash table #mydata (same name) number/name of columns changes asper call 0 or 1.e.g.when call for 0, ----> Pass 2 columns as company_cd and section_cd ininterface hash (#) table ---- name #mydata.when call for 1, ----> Pass 3 columns as Section_cd, line_cd andsubline_cd in interface hash (#) table ---- name #mydata.As a result, none of the case (0 or 1) is running properly, It givesproblem.When I execute procedure for 0 by passing #mydata with two columns---> it gives problem in 1 section codeAnd When I execute procedure for 1 by passing #mydata with threecolumns ---> it gives problem in 0 section codePlease suggest !!! If anybody have faced the same problem or have anyidea about this case.(I think passing hash table with 3 column as col1,col2,col3 can servethe purpose, but this may cause rework in my case, so looking foralternate solution)Thanks in Advance,T.S.Negi
Hello, i need to create temporary table inside SP. i having one string variable @strQuery which contain dynamic query inside SP. i am executing that trhough execute sp_executesql @strQuery once query build.
now instead of select query , i want to creat hash table. so i wrote :
set @strQuery = "Select * into #tmp_tbl from table_name..." when i tried to execute it through
execute sp_executesql @strQuery , its giving error 'Invalid object name '#tmp_tbl' If i removed Hash then it works fine. even for double Hash also its work fine. but i want hash table only as i want that table local to that user.
Even direct execution of select statement without @strQuery works fine. but i want to execute @strQuery through execute sp_executesql @strQuery only as query is dynamic .
please guide me how to do this? its very urgent for me. thanks in advance.
I never paid much attention to this before but I noticed this today in a new table I was creating.
For tables defined in the tabular model the table properties have something like SELECT Blah FROM TableName ORDER BY Blah Then in the tabular model the table's data is in the same order it was ordered by in the data source for the table.
I have a date table I setup and I noticed it is NOT respecting the sort order.
I have it sorted by DateID which sorts with the oldest date first and newest date as last row.However, the table that is imported and stored in the data model is not in that order.
I can of course manually sort the rows in BIDS/DataTools, but I find this discrepancy odd.
Would this have negative impacts on the EARLIER function for example if the data rows are not in the order specified?
Ok, I'm really new at this, but I am looking for a way to automatically insert new records into tables. I have one primary table with a primary key id that is automatically generated on insert and 3 other tables that have foreign keys pointing to the primary key. Is there a way to automatically create new records in the foreign tables that will have the new id? Would this be a job for a trigger, stored procedure? I admit I haven't studied up on those yet--I am learning things as I need them. Thanks.
Using bcp to load data from a flat file into a database table will load the records in the exact same order as they are in the flat file; whereas, a DTS package may not load the records into the table in the exact same order as they are in the flat file. Why? ... the table has no keys or indexes ... the DTS package was created with MS SQL 2000 and is now being used in MS SQL 2005 ...
Table2 contains fields Group, Name,Category, Dimension (Group and Name are not in Table1)
So basically I need to read the records in Table1 using Groupid and each time there is a Groupid then select records from Table2 where Table2.Category in (Select Catergory from Table1) and Table2.Dimension in (Select Dimension from Table1)
In Table1 There might be 10 Groupid records all of which are different.
I am trying to write a query that will retrieve all students of a particular class and also any rows in HomeworkLogLine if they exist (but return null if there is no row). I thought this should be a relatively simple LEFT join but I've tried every possible combination of joins but it's not working.
SELECT Student.StudentSurname + ', ' + Student.StudentForename AS Fullname, HomeworkLogLine.HomeworkLogLineTimestamp, HomeworkLog.HomeworkLogDescription, ROW_NUMBER() OVER (PARTITION BY HomeworkLogLine.HomeworkLogLineStudentID ORDER BY
[Code] ...
It's only returning two rows (the students where they have a row in the HomeworkLogLine table).
I need to select records by random order everytime user go to that page. QuestionID is the uniq field in this table.
SELECT * FROM QuestionMaster.
I tried to use the following statement to get the random records but I can't get the value in the variable out of this statement that I can use in my above select statement. Please HELP.
1. Group records according to docno column. 2. Records will sort in desc order. (According to date1 column) 3. In date1 column if more than one date is same than we ll consider the date2 column. EX: 2008-04-30 00:00:00is same here so sorting will happen based on Date2 column. So internal sorting should happen instead assigning random values. 4. Number column is the expected output column.
I need to create a temp table with an identity column based on the contents of a physical table (CONTACTS) that has no key or unique way to identify which record was inserted first,
I can query CONTACTS with no ORDER clause and everything is in the order it was inserted. However, when I create the temp table with a newid() as ID or IDENTITY(1,1) as ID, the duplicate rows as they existsed in the physical table are not inserted into the temp table in the same order.
Is it possible to select records from a physical table into a temp table in the same order while creating a unique field?
I've tried this many different ways using variations of ORDER BY/ no ORDER BY. I've tried creating the temp table first with the IDENTITY field, then insert into it. I've also tried SELECT INTO syntax while creating the IDENTITY field with the select. I've done this with newid() as well.
I'm trying to look for an efficient way to select records from two tables, combine them (not just one set above the other) and also efficiently page the results as well as dynamically order by specific columns. So far I have this....
INSERT INTO @Temp SELECT i.ID, i.Name, Type = 'I' FROM Item i UNION SELECT p.ID, p.Name, Type = 'P'FROM Package p
SELECT * FROM @Temp ORDER BY Name ASC
I was going to then implement some sort of of ROW_NUMBER like paging and ordering on the @Temp table variable. Problem is there could be potentially 1000's or more Items and Packages and they would all go in this single Temp table before having records 1 to 10 returned. Is there a more efficient way of doing this before I proceed any further?
I have two tables CompanyTab and OrderTab .CompanyTab table contain one record for each client while OrderTab table contain multiple orders for clients.
I have data in both table like
CompanyTable ID Name 1 name1 2 name2
OrderTable
OrderId CompanyTabID 1 1 2 1 3 1 4 1
In my query I want to show all orders in single row.
Hi, I have few views in SQL Server 2005. In Design View, the results of View are ok. In OPEN VIEW option, records are not sorted correctly, ORDER BY is ignored. What could be the reason for this ? Thanks a lot in advance!
Hi all,I have a table with this structure:Customer ID | Transaction date | Transaction type1 | 1/2/2008 | F1 | 1/4/2007 | M1 | 1/2/2008 | R2 | 1//5/2007 | M2 | 1/6/2007 | RFor each customer ID, I need to retrive only the records with the mostrecent transaction date, and I did:Customer ID | Transaction date | Transaction type1 | 1/2/2008 | F1 | 1/2/2008 | R2 | 1/6/2007 | RThe problem is, each customer can make more than one transaction inthe same day (see above). In these cases, I need to retrieve only onerecord per customer, based on the importance of the transaction: F ismore "important" than R which is more "important" than M. So, in theexample above, I would only retrieve transaction F for customer 1 anddisregard transaction R: they were made on the same date, but I ammore interested in F than in R.Do you have any suggestions on how I could achieve this in SQL?I use Microsoft SQL server 2005.Thank you for your help!
We have an app that uses triggers for auditing. Is there a way to know the order that the records were inserted or deleted? Or maybe a clearer question is.... Can the trigger figure out if it was invoked for a transaction that "inserted and then deleted" a record versus "deleted and then inserted" a record? The order of these is important to our auding.
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.
I can't get my head around this:I want to select all IDs from table A that do not have a related record intable B according to some condition:Table A contains, say, Parents and table B contains Children. I want toselect all Parents that have no children called "Sally" (this is a noddyexample, reminds me of being at Uni again :) ).Any ideas?Thanks
I have a situation where deleting old records is blocking updating latest records on highly transactional table and getting timeout errors from application.
In details, I have one table called Tran_table1 in OLTP database. This Tran_table1 is highly transactional table, it will receive data for insert/update continuously
While archiving 2 years old records from Tran_table1 into Tran_table1_archive in batches(using DELETE OUTPUT INTO clause), if there is any UPDATEs on Tran_table1,these updates are getting blocked and result is timeout errors in application.
Is there any SQL Server hints to avoid blocking ..
I have a table with about half a million records, each representing a patient in my county.
Each record has a field (RRank) which basically sorts the patients as to how "unwell" they are according to a previously-applied algorithm. The most unwell patient has an RRank of 1, the next-most unwell has RRank=2 etc.
I have just deleted several hundred records (which relate to patients now deceased) from the table, thereby leaving gaps in the RRank sequence. I want to renumber the remaining recs to get rid of the gaps.
I can see what I want to accomplish by using ROW_NUMBER, thus:
SELECT ROW_NUMBER() Over (ORDER BY RRank) as RecNumber, RRank FROM RPL ORDER BY RRank
I see the numbers in the RecNumber column falling behind the RRank as I scan down the results
My question is: How to convert this into an UPDATE statement? I had hoped that I could do something like:
UPDATE RISC_PatientList_TEMP SET RRank = ROW_NUMBER() Over (ORDER BY RRank);
but the system informs that window functions will only work on SELECT (which UPDATE isn't) or ORDER BY (which I can't legally add).
I have 2 tables: Order(ID, Quantity) and Product(ID,Name, Price) and I want to add a calculated field in Order table based on the price column in the Product table. How do i do that?
this query returns the values i want in the table.
select a.quantity * b.price from tblCustomerPurchases as a join tblProduct as b on a.ID=b.ID
It seems like there is no built in procedure for making a password hash inSQL2000. Am I wrong.Do I have to make it from scratch myself or is there samples out there?/Jens Ulrik
I want to know wether SQL Server 2005 (that I use) has a built in support for creating MD5 hashes and if it has then can someone give me an example how to use it.
I need to create hash of image field and then compare it to another one that has been sent from application. The hash from my app is sent as string so it would be great if the hash result would be returned as 32 character string
The Software is wrintten in visual basic .net 2005 and it has a built in MD5 hash function so I have taken care of that part.
P.S. If SQL Server 2005 doesn support MD5 maybe someone know other hash alghoritms that Server does support (maybe one that also is supperoted by VB.NET 2005).
Many articles on sql server security make reference to Hash functions. Do you know of a simple example of a hash function that I could show to others?
For example, would taking the first eight bytes of the mathematical "sin" of a number be a good function? I don't know. Or is a hash "function" actually an involved algorithm, so the "simple" formula I was looking for really doesn't exist.
