SQL Server 2012 :: Determine Read / Write Frequency On Database Table
Oct 6, 2015How do I determine the read/write frequency on a database table? I am trying to do this on a 2012 and 2008 R2 servers.
View 2 RepliesHow do I determine the read/write frequency on a database table? I am trying to do this on a 2012 and 2008 R2 servers.
View 2 Repliesi attached adventure works in sql server 2008 and it showing as read only ,make it read write or remove read only tag from database.
View 11 Replies View RelatedHow to identify whether the files are in read write or read only?
View 1 Replies View RelatedAny easy way for a batch file or automated process to read from one db and table and what ever entry is missing out of another database + table it writes those missing entries to.
This is a simple table in one db that is filled with usernames, I want to see if there are missing usernames in another db and table and write those entries.
db1.usr_table.usr_name = jdoenew
If jdoenew is missing in the 2nd db I will need to write entries like:
db1.usr_table.usr_name = jdoenew
db1.usr_table.password = tmppassword
db1.usr_table.active = 1
I'm new to full text catalogs and we have a vendor who's code utilizes them. The database server is SQL 2005 and I am noticing the following message in the SQL log every minute.
Changing the status to MERGE for full-text catalog "ResearchCatalog" (5) in database "DBA_Test" (11). This is an informational message only. No user action is required.
A SQL job is running the following command every minute.
exec sp_fulltext_catalog 'ResearchCatalog', 'start_incremental'
What is the typical frequency for running an incremental?
Can the messages be suppressed?
Thanks, Dave
Can a user of db owner role of a database change the databse option to read only and read-write?If not what permission I need to grant to the user?
View 1 Replies View RelatedHow would I find the last read/write dates for all the tables within a database.
View 6 Replies View RelatedI have two database files, one .mdf and one .ndf. The creator of these files has marked them readonly. I want to "attach" these files to a new database, but cannot do so because they are read-only. I get this message:
Server: Msg 3415, Level 16, State 2, Line 1
Database 'TestSprintLD2' is read-only or has read-only files and must be made writable before it can be upgraded.
What command(s) are needed to make these files read_write?
thanks
How can I create a SQL authentication account with read-write access to only 1 table in a SQL database.
View 1 Replies View RelatedHi there,
Does anyone know a way (a query perhaps?) to determine which logins have write permissions to a specific database on SQL Server 2005? Ive thought about joining sys.syslogins & sys.sysusers but looking at the columns, not sure which one would render me that info.
Any help is appreciated. Many thanks!
Why I see absolutely no performance improvement when I spread my primary file group over 8 separate files on 8 separate disks, as opposed to having the primary file group all in one file on one disk.
I have set up 2 identical databases, one spread over 8 disks and one on one disk. Each database has a table called DATA and a column called VALUE. Value is NVARCHAR(200). I have filled each table up in both databases with 20,000 rows.
I then perform a select on each table in each database using CHECKPOINT and DBCC DROPCLEANBUFFERS to ensure I am reading from disk before each query and the execution times are identical in both databases.
I then ran the same queries against each database using a load testing tool and the batch requests per second on each DB is identical under load.
Surely the database with data spread over 8 disks should be FAR faster than the single file database as you have the combined reading power of 8 disks as opposed to 2??
Also, the same is happening for write speeds. When I create the data on both databases, the time it takes is identical on both.
BOL says it should be faster with multiple disks.
Just FYI this is on an Azure virtual machine and each disk is a locally redundant data disk that I have attached to the virtual machine.
Whether write speeds should increase with multiple disks or just read speeds?
Hi, we're trying to read from a table and write back to the same table and are having a lot of trouble with blocking. What could we do to prevent our application from hanging due to blocking of this type?
View 1 Replies View RelatedIs there a way to get the last read/write time of a table?
I want to have a few tables, but only allow them to exist if they have been used in the last 30 days. I want to set up a "purge" job to clear out any tables that have not been used in 30 days.
Hello,
Any help here much appreciated.
I am using sql server 2000 to perform address cleansing. there is a point in my scripting when a table i pass values to becomes read/write.
i suspect this is when i run a cursor through the table.
Is anyone able to confirm for me whether running a cursor changes a table's properties?
Many thanks.
Tim
Ps as the table seems to be read/write it is harder to tell if NULLs are in the table and this is messing with joins I have further down the track.
i have a database which get refreshed every day from client's data . and we need to pull heavy data from them every day as reports . so only selects happens on that database.
we do daily population of some table in some other databases from this daily refreshed DB.
will read uncommitted or NOLOCK with select queries to retrieve data faster.
there will be no dirty read as there are NO DML operation in that database so for SELECT which happens concurrently on these tables , will NOLOCK work?
Hi,
I want to do the following with a ssis package:
INPUT:
A table contains 2 columns with data i need. column A=Filename and column B=FileContent
PROCESS:
I need to loop through ea record in the table and retrieve columns A and B. Then for ea column i need to write the Content hold in column B into File hold in column A.
I so far found out, that i need a Execute SQL Task in Control Flow querying the table and get columns A and B into 2 variables, plus a 3rd var holding the object. Then the output goes into a Foreach Loop Container. From this point i don't know how to continue. I tried to put a Data Flow Task inside the Foreach Loop, but couldn't find out how i now get the 2 variables to the Data Flow Task and use them to for the file to be written and the content to be placed in the file.
Is there any example similiar to that so i could learn how to start on that?
Thanks
Danny
I have a new production server with about 100 jobs on it. These are ETL jobs about half of which are in SSIS packages and half call stored procedures directly. For those calling stored procedures directly, might there be a way to use the system catalog to link the schedule of the job to the table being updated by the procedure? The result is a list of tables (those updated by jobs) and the schedule of when they are updated.
SQL 2012 Standard VPS Windows 2012 Server Standard
I am working on Sql Server 2012. and I have multiple databases there. Out of those, i want to move one of my databases to other SQL server 2012, For that i was trying to get approximate size of my database on current server. As i don't have the admin rights, so i can't get that. Can i get the approximate size by right clicking on database and by using the size property Under Database category to get the size idea?
View 4 Replies View Relatedcode that I can use to determine if a certain table has been accessed in the past?
View 6 Replies View RelatedHi to all DBAs,
I would like to ask if there will be a write and concurrency issue if i would create an online application with just one user connecting to the database, just like most open source php/mysql that can be downloaded
i.e
Setup 1. I will grant a single user that will connect to a database and will be set to a config.inc.php file and then create a table users (userid, username, password) and this table will be used for the application authentication and access control.
Setup 2. or is it much better to grant users that will connect to the database and have the table users for access control of the application?
to further illustrate my query:
Setup 1 would be:
###################Table: Users
user a@ipadd --> db1 --> userid mary --> myOnlineApp
user a@ipadd --> db1 --> userid john --> myOnlineApp
user a@ipadd --> db1 --> userid paul --> myOnlineApp
and Setup 2 would be:
#####################Table: Users
user mary@ipadd --> db1 --> userid mary --> myOnlineApp
user john@ipadd --> db1 --> userid john --> myOnlineApp
user paul@ipadd --> db1 --> userid paul --> myOnlineApp
will Setup 1 be enough if I will use SQL Server as database?
or Setup 2 is better user/database architecture?
This application will be online enrollment for a school with 16,000 students
very much appreciated for the feedbacks and suggestions
^_^x
I'm trying to do Sharepoint DR with Log Shipping and every thing configured except one thing which is switch the WSS_Content (Standby /Read-Only) DB to be ready and Write.
I tried from
GUI or ALTER DATABASE [WSS_Content] SET
READ_WRITE WITH NO_WAIT
but I received the below error:
Database WSS_Content is in Warm Standby
We have a reporting database which is refreshed daily from prod backup and later creating new tables/views/indexes as part of the refresh job. Is there a better approach we can implement in sql 2012/2014 for this scenario since we are planning to migrate to sql2014.
View 5 Replies View Relatedhello,
What role or system privilege do I need to grant to a user if he need to read the data from a table which is in a link server object? where I can find the document about these commands.
Thanks
I must determine FILEGROUP on my DB in SQL Server. Because when i wants to retrieve files which is stored in db, it would be face with error about FILEGROUP.
View 1 Replies View Relatedi must determin FILEGROUP on my DB in SQL Server. because when i wants to retrieve files which is stored in db, it would be face with error about FILEGROUP.
View 1 Replies View RelatedHow you would calculate the average read/write latency experienced by a SQL Server instance during a specific time window in order to monitor this for multiple instances. From this MSDN blog, I know that you have to take multiple samples and do some calculations to get the correct latency.
[URL] ...
However, the SQLServer:Resource Pool Stats object tracks these numbers per resource pool and we want to get one number for the whole server. Since there can be a different base value for each resource pool, you can't simply sum the numerator values together. Here's some sample data from a server that illustrates the problem.
object_name counter_name instance_name cntr_value cntr_type
SQLServer:Resource Pool Stats Avg Disk Read IO (ms) default 307318919 1073874176
SQLServer:Resource Pool Stats Avg Disk Read IO (ms) Base default 25546724 1073939712
SQLServer:Resource Pool Stats Avg Disk Read IO (ms) internal 2045730 1073874176
SQLServer:Resource Pool Stats Avg Disk Read IO (ms) Base internal 208270 1073939712
I'm thinking I would need to do some sort of weighted average, but I'm not sure if that will result in the correct value. Here's the formula I am thinking about using currently before doing the calculation over time
((default * default[base]) + (internal * internal[base]))/(default[base] + internal[base])
Then to do the calculation over time, I'd use the changes in the calculated numerator and denominator to get the average.
Does this sound like to correct way to get this value? Is there a good way to verify?
Does anybody know of a way to determine the last date/time a table has been accessed (query/update)? I've done enough research to know that this isn't easy. However, perhaps somebody has figured out a way through some of the stats that SQL Server keeps to determine the last access of a table. I have recently been put on a team that had no DBA and has a number of databases out there. They would like to determine which databases are inactive and get rid of them. I am a developer and haven't had much SQL Server Administration experience. Any info will help greatly! Thanks!
View 2 Replies View RelatedWe are using 208r2. We used to generate simple reports against to prod. The production is running slow. Just we need the production fresh copy all the time. We are using mainly one database. So I need to have read only copy of that particular database which is sync with the production.
View 3 Replies View RelatedI have an inter-company problem.
The one company gathers data into a SQL database hosted within their secure network and now one of the companies (that they are contracted to gather the data for) wants a backup of the data or a replicated database to be able to be placed onto a external HDD or different SQL server on their own network and server.
The catch is that to maintain their data security the original company doesn't want the company that is receiving the data to be able to edit the data. They are concerned that someone might change the data and claim that the data that they gathered is incorrect.
Is there a way to ensure the SQL database remains entirely read only?
we would like something like Mirroring with a Snapshot database so that the "replicated" site can read the database locally.Unfortunately, this requires SQL Enterprise edition on the reading site if I get this right.Is there a cheaper way to achieve this sort of functionality?
View 9 Replies View RelatedI can find many examples of loading DBCC results into tables. They all begin with a create table statement defining the results. My question is , other than trial and error, is there a way to determine what data types will be returned. Sure you can say that first element looks like an integer, but is it really a bigint, and that text string can be varchar(max) but will char(2) work.
I'm not looking for an answer for a specific DBCC function, but rather a generic way I can determine the characteristics of any DBCC result set.
I tried
SELECT *
INTO #tmp
FROM OPENROWSET('SQLOLEDB',
'Server=ray;Trusted_Connection=Yes;Database=Ed_sandbox',
'Set FmtOnly OFF; DBCC loginfo WITH tableresults ')
but I got back
Msg 11527, Level 16, State 1, Procedure sp_describe_first_result_set, Line 1
The metadata could not be determined because statement 'DBCC loginfo WITH tableresults' does not support metadata discovery.
How can i get the total number of each distinct value in the column and write it to another table e.g.
MyTable
Id Fruit
1 Apple
2 Banana
3 Apple
4 Watermelon
5 Banana
6 Watermelon
7 Apple
Result
Fruit Count
Apple 3
Banana 2
Watermelon 2
Hi
Is there any way of producing a list of tables with an indication of frequency of updates?
Even a list of tables with a "last updated" column would be good...