PK And Timestamp In Same Table?
Oct 7, 2005Is there any reason to have a row that is the PK/Identity and a row
that is datatype Timestamp in the same table?
Does this in any way help speeding up row updates?
Thanks,
lq
Is there any reason to have a row that is the PK/Identity and a row
that is datatype Timestamp in the same table?
Does this in any way help speeding up row updates?
Thanks,
lq
I have a transaction table having about 40 crore rows in source. It don't have timestamp and unique key columns. It have only Bill_month and Bill_Year columns. Actually for loading this table into staging I have added a new datetime column by adding default bill_date as 01. Then
* First we delete last 3 month data from staging tables.
* Get last 3 months data from source table.
* Load that 3 months data from source to staging table.
We do this because we only get update for last three months data. Now I have to include this transaction table as Fact table in DW. What will be the best practice for loading the fact table by picking data form staging table. Also we have to look up with dimensions for Foreign Keys.
* Should I implement the same method of deleting last 3 months records and loading them again.
I am populating oracle source in Sql Server Destination. after few rows it fails it displays this error:
[OLE DB Destination [16]] Error: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005. An OLE DB record is available. Source: "Microsoft OLE DB Provider for SQL Server" Hresult: 0x80004005 Description:
"Invalid date format".
I used this script component using the following code in between the adapters, However after 9,500 rows it failed again giving the same above error:
To convert Oracle timestamp to Sql Server timestamp
If Row.CALCULATEDETADATECUST_IsNull = False Then
If IsDate(DateSerial(Row.CALCULATEDETADATECUST.Year, Row.CALCULATEDETADATECUST.Month, Row.CALCULATEDETADATECUST.Day)) Then
dt = Row.CALCULATEDETADATECUST
Row.CALCULATEDETADATECUSTD = dt
End If
End If
I don't know if my code is right . Please inform, how i can achieve this.
date time s-sitename TimeTaken(Seconds)
6/8/2015 10:56:26 TestSite 100
6/8/2015 10:56:26 TestSite 500
6/8/2015 10:56:26 TestSite 800
6/9/2015 11:56:26 TestSite 700
6/9/2015 11:56:26 TestSite 200
6/12/2015 12:56:26 TestSite 700
I have a table with above values, I am looking for a sql query to find AvgTimeTaken at different time stamps and total count of each time stamp
Output
date time s-sitename TimeTaken(Seconds) Count_of_Request
6/8/2015 10:56:26 TestSite 1400 3
6/9/2015 11:56:26 TestSite 900 2
6/12/2015 12:56:26 TestSite 700 1
Hi,
I've heard that in Oracle, tables have an implicitly column that stores the last modified timestamps for each record.
Using this timestamp i can find out all the newly inserted/updated records in a table.
Do we have something similar in SQL server. Or is there a method to find out newly inserted/updated/deleted records ?
Thanks,
Deep GZ.
how you code to get a timestamps to a temp table.ex. select date from clock where name='name' and nbr='10';I want this data to be in my temp date table..
View 1 Replies View RelatedThere is a simple SQL table ("mytable"). Say, it has 100 rows and 5 columns. One of the columns (say "time") contains timestamps across the whole day and the data in this column has the following format: hh:mm:ssAM/PM. So, the table looks like this:
time var1 var2 var3 var4
12:00:01PM value ...
12:00:05PM value
12:00:08PM value
12:00:20PM value
12:10:12PM value
...100 rows
How to create simple SQL request for extracting data between any 2 timestamps? For example, I need sub-table of the initial table containing all data values between 12:00:05PM and 12:00:20PM:
time var1 var2 var3 var4
12:00:05PM value
12:00:08PM value
12:00:20PM value
I consider something like this:
SELECT * FROM mytable WHERE time BETWEEN ...?
I have been provided with a table where one of the columns is of TimeStamp data type. My question is how to insert and update data in this column through my SQL Statement? When I run my SQL statement, it gives me an error with this column name in the error.
View 3 Replies View RelatedIm trying to insert the values from this query into a table, so I can later check the history of memory usage:
SELECT
[total_physical_memory_kb] / 1024 AS [Total_Physical_Memory_In_MB]
,[available_page_file_kb] / 1024 AS [Available_Physical_Memory_In_MB]
,[total_page_file_kb] / 1024 AS [Total_Page_File_In_MB]
,[available_page_file_kb] / 1024 AS [Available_Page_File_MB]
,[kernel_paged_pool_kb] / 1024 AS [Kernel_Paged_Pool_MB]
,[kernel_nonpaged_pool_kb] / 1024 AS [Kernel_Nonpaged_Pool_MB]
,[system_memory_state_desc] AS [System_Memory_State_Desc]
FROM [master].[sys].[dm_os_sys_memory]
What I'm missing is a way to insert the current timestamp every time I insert to the table.My plan is to use the insert into command.
Hi,
There's a nullable Timestamp data type column in all tables in Sage SQL database.
When using Insert SQL query add a new record, with a NULL for the Timestamp column, into a table it seems alright. When opening the table it shows the inserted data in the Timestamp column is Binary. But when reading the record by Sage program there's an error message as the following:
'Fractional truncation: table scheme.opheadm unique_no 24969592 1'.
Any idea what the problem is?
Thanks,
Yabing
In my database I want to archive some rows based on the time stamp. I read that horizontal partitioning will do that. This partitioning will insert the rows from the table into some other Database - Tablename. In retrivng those rows back I need to issue separate queries and UNION the result set. Is this way is correct or there any better ways to do this? If it is I have another question. If I add a new column to the table I partitioned, what will happen to the table that I stored in other Database. Is that going to add this new column too?
If possible please give me a sample code or queries to partition the database.
Thank you.
I created a SSIS package and creating a derived column named: Date...set datatype as DT_DBDATE....I do not want the timestamp on date...then I want to load this Date into a SQL server database table, with datatype of datetime, but it will load here with the timestamp which I do not want. Any ideas? I did change datatype of the SQL Server Destination datatype to DT_DBDATE but it will change it back to DT_DBTimestamp. thx
View 1 Replies View RelatedTwo tables:
table #1 = timestamp, servername1(never changes), value(int)
Table #2 = timestamp, servername2(never changes), value(int)
What I need to do is merge the two tables into a single table based on the matching timestamp:
timestamp, servername1, servername2 as headers then values under
"1/1/1-1:10:1" , "10" , "10" - as an example
"1/1/1-1:20:1" , "20" , "21" - as an example
"1/1/1-1:30:1" , "1" , "5" - as an example
Powershell or MSSQL 2008 queries work.
I have a powershell script atm that can create the table and then throw it back into the database but its very slow because of the amount of records.
The table is for some performance stat collection app.
Table #1 records a timestamp, the servername (which is the same over and over in the table) and the value of the performance object.
Table #2 is the same collection but for a different server.
The layout in the database is terrible but this is what I get to work with.
For starters, please feel free to move this if it is in the wrong forum.
The issue I have is this. I have been asked to delete all information from a table that was inserted before May 12 this year. The issue is that when the DB was created, whoever designedd it neglected to add a timestamp column for the user data table (the one I need to purge). Does SQL, by default, happen to store insert times? Would it be something that might hide ina log file somewhere?
I want to be able to see when records have been added to a table. The issue is we have a DTS job scheduled to run every night. The developer who wrote it password protected it and doesn't work here anymore. I want to add a step to this series of DTS jobs and want to run it just prior to his job. Is there a way to see when the records are being added or when this job is being run? Thanks again, you guys are the best.
ddave
how to insert a value into table where the fieldname uses a datatype timestamp.(asp.net2.0)
View 1 Replies View RelatedI have a timestamp in a date field of a table I have but when run it does not enter the date automatically and all I get is system.byte[] display where the dtae and time should be, how can i get it so this field places the date in automatically.???
View 1 Replies View RelatedI am retrieving data from a database, and have been noticing some really strange timestamps. Has anyone ever seen a timestamp that looks like this: 16777215Karls
View 1 Replies View RelatedHello,
I just started using SQL and i don't really know too much syntax.
I have an ASP page that is inserting data into a table called YellowAlerts.
The first field in this table is AlertDate. I thought I read somewhere that there is a timestamp feature. If anyone could help me out that would be great.
Thanks.
How can I add a timestamp column to a table that will let me know when
a record was inserted? (perhaps by setting a default to that column?)
For some reason, @@currenttimestamp gives me
some binary garbage.
Please help with any suggestions.
How do I "disable" the timestamp so that when I copy my data into a new
database it will use the timestamp from the last time the table was effected?
Thanks,
Tracy
Hi All,
I believe that all created tables have got by default a timestamp field.
I tried to find out how to read this field with a Transact-SQL statement.
And so I don't know the syntax, is anyone can help me ?
Thanks,
Herve
If i have a table with a 3 fields and one of them has a timestamp as a field type and I want to do an insert or update what is the value I am inserting for the column timestamp.
Help appreciated
hello I put a time stamp in one of my column and it says binary data in the field. How do i make that binary data turn into a real date and time. If this is possible how do I separate the date from the time in the results or would I have to do this myself. Also, I need to sort the results by date can this be done?
Sorry for the stupid questions my sql book (sql demystified) does not elaborate. Thanks
hello,
m new to sql server.can any one tell me is it possible to insert only time value in timestamp datatype.
i have table which have datatype datetime.and i have to insert only time.i can't change the datatype datetime to any other one.p
plz any one can suggest me the solution..
Regards,
Sonal.
Hello I'm not a SQL Expert but i'm using it for a few months. Now i need to use a variable that everytime that is called to a select into it gives the timestamp (or Stamp) to put on a specific field. The problem is that i need this variable not in bd conotation (like 2007-02-12 12:00:44:33) but like this 2007021212004433. Can someone help me? Thanks in advance.
View 5 Replies View RelatedIs there any reason to have a TimeStamp column onto a table that has aPrimaryKey when using SQL Server and an Access front end?I read that doing so will always eliminate that write conflict error.But I notice that when pulling a recordset of 10K records, it takes 3Xless time if I delete the timestamp column on the table before runningthe SP.lq
View 2 Replies View RelatedIs there any chance to get the content of a timestamp field?I am trying to get the content via Visual Objects and I am receiving onlynothing.Not NIL but "".Is it possible to get any useful information out of this field in anylanguage?(btw I know that the MS-Timestamp is not a timeformat)THXJens
View 1 Replies View RelatedIs there any reason at all to use a timestamp column in a table havinga primarykey column???lq
View 2 Replies View RelatedHi there,
When inserting into a table with a timestamp column without explicitly setting the column_list you get the following.
ie.
insert into Table_A
select *
from Table_B
Cannot insert a non-null value into a timestamp column. Use INSERT with a column list or with a default of NULL for the timestamp column.
I was wondering if there's a way to overcome this without specifying the column list?
Thanks.
HI every one
I have a timestamp column in my database. I want to use this column to get current changes but i am not able to get desired results when i use to compare that field in C#.
Thanks in advance
Take Care
ALLAH HAFIZ
Hi folks, I am binding a gridview to a SQLDataSource that contains a timestamp column. My SQLDatasource contains an update method (via a stored procedure) that takes all of the data fields from the grid as input parameters. I am getting an error stating 'sql_variant is incompatible with timestamp' . The parameter definition for the update method specifies the timestamp column as type 'Object'. <UpdateParameters> <asp:Parameter Name="timestamp" Type="Object" /> ... </UpdateParameters> When the data is initially retrieved, the timestamp column is converted to a System.Byte[] however I cannot specify System.Byte[] in the parameter definition (different error) I have read other post with this issue but none seemed to have been solved (while still using SQLDataSource and binding).I have tried other datatypes and they do not work as well. Any help would be greatly appreciatedThanksTom
View 3 Replies View RelatedI have a database that I don't want to lock. I decided that before any updates can occur I would check a timestamp value and ensure that nobody else updated before I did (avoiding the 'last update wins' scenario).
I have a problem, I can read the Timestamp from the db when I read the record. I currently use the data to pre-fill a form (gee go figure ;) ) and the user changes some values and updates.
I don't know what to DO with the timestamp value while I am holding it. I have tried putting it into a hidden field on the form but the value does not seem to translate back and forth.
Do I have to store it as in memory as part of the session or can I somehow convert to and from text??
I have about 0 experience working with byte arrays so the best answer is one with an example.
Thanks.