Transact SQL :: Making Server Database Read / Write From Read Only

Jan 12, 2012

i attached adventure works in sql server 2008 and it showing as read only ,make it read write or remove read only tag from database.

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Reset Database Files From Read-only To Read-write

Jan 18, 2008

I 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

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SQL 2012 :: Identify Whether Files Are In Read / Write Or Read Only

Mar 24, 2015

How to identify whether the files are in read write or read only?

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Recovery :: Switch (Standby / Read-Only) DB To Be Read And Write

Aug 26, 2015

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 

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SQL 2012 :: Change Read-only And Read-write

Aug 15, 2014

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?

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SQL Server 2012 :: Determine Read / Write Frequency On Database Table

Oct 6, 2015

How do I determine the read/write frequency on a database table? I am trying to do this on a 2012 and 2008 R2 servers.

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Concurrency Issue On A Single Database User For An Online Read/write Application

Aug 3, 2006

Hi 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

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SQL 2012 :: Read Committed For Read Only Database?

Jun 27, 2014

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?

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SQL Security :: Making Data Change In Read Only Database Without Letting Other Users Update Data

Aug 6, 2015

I want to make data changes in read_only database , that's why i must set database read_write. While database is at read_write mode, i want to be sure that no one makes change in database.

For this aim, i write the code below, but i suspect that after setting the database read_write, till the setting database
single_user ,is it possible get DML script from another user. Is the code below enough for this operation. Or is there another way?

Reminding: Read_only database can not be set single_user mode. That's why, first you must set database read_write.

The code;

use master
alter database xxx set read_write
with rollback immediate
alter database xxx set single_user
with rollback immediate

use xxx
update  tablexxx set columnxxx=yyy
use master
alter database xxx set read_only
with rollback immediate
alter database xxx set multi_user
with rollback immediate

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Transact SQL :: Remove Read Only From A Database?

Aug 26, 2011

i have a data base sql Server .I wrote a stored procedure or attach my database but it is attached in read only mode how can remove read-only.

this is my stored procedure.

create procedure attache
as
declare @trouvemdf int
declare @trouveldf int
if exists (select name from sysdatabases where name='Gestion_Parc')

[Code] ....

i try this EXEC sp_dboption 'Gestion_Parc', 'read only', 'FALSE' but it causes those error

Msg 5120, Level 16, State 101, Line 1
Unable to open the physical file "C: Gestion_Parc.mdf". Operating system error 5: "5 (Access is denied.)".
Msg 5120, Level 16, State 101, Line 1
Unable to open the physical file "C: Gestion_Parc_log.ldf". Operating system error 5: "5 (Access is denied.)".
Msg 945, Level 14, State 2, Line 1

[Code] ....

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SQL Server 2008 :: Last Table READ And WRITE Dates

Feb 26, 2015

How would I find the last read/write dates for all the tables within a database.

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Making Field Read Only

Mar 8, 2007

Goodday all

I have a details view on a vb form .

Now that i have been working on the program , i realise that i would like to make some fields " read only '

Is that possible , and if so how?

Thanks

Rob

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SQL Server Admin 2014 :: Can Have Secondary Replica As Read / Write Mode?

Oct 14, 2014

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.

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What Permission I Need To Grant To A User If He Need To Read Or Write A Link Server Tables

May 31, 2007

hello,



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

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Transact SQL :: Read Data From CSV Files And Insert Into DataBase

May 6, 2015

I have a requirement to

a. Read data from Different CSV files.
b. insert and update data to Data base in multiple table using joins.

This execution runs for 1-2 hours.I can use C# with Ado.net, but only concern I see is if in between execution fails due to some connection or other error. All insert data has to be cleaned up again.I feel writing and Store procedure inside transaction, which will take path's for CSV file as input and insert data in database. using transaction we will have flexibility rollback to original state.

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Read Text File From SQL Server, Read Its Content, And Load It In RichTextBox (Related Component: Context.Response.BinaryWrite(), And StreamReader)

Nov 26, 2007

OBJECTIVE: I would like to read a text file from SQL Server 2000, read the text file content, and load its conntents in a RichTextBoxTHINGS I'VE DONE AND HAVE WORKING:1) I've successfully load a text file (ex: textFile.txt) in sql server database table column (with datatype Image) 2) I've also able to load the file using a Handler as below: using System;using System.Web;using System.Data.SqlClient;public class HandlerImage : IHttpHandler {string connectionString;public void ProcessRequest (HttpContext context) {connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["NWS_ScheduleSQL2000"].ConnectionString;int ImageID = Convert.ToInt32(context.Request.QueryString["id"]);SqlConnection myConnection = new SqlConnection(connectionString);string Command = "SELECT [Image], Image_Type FROM Images WHERE Image_Id=@Image_Id";SqlCommand cmd = new SqlCommand(Command, myConnection);cmd.Parameters.Add("@Image_Id", System.Data.SqlDbType.Int).Value = ImageID;SqlDataReader dr;myConnection.Open(); cmd.Prepare(); dr = cmd.ExecuteReader();if (dr.Read()){ //WRITE IMAGE TO THE BROWSERcontext.Response.ContentType = dr["Image_Type"].ToString();context.Response.BinaryWrite((byte[])dr["Image"]);}myConnection.Close();}public bool IsReusable {get {return false;}}}'>'>
<a href='<%# "HandlerDocument.ashx?id=" + Eval("Doc_ID") %>'>File
</a>- Click on this link, I'll be able to download or view the file WHAT I WANT TO DO, BUT HAVE PROBLEM:- I would like to be able to read CONTENT of this file and load it in a string as belowStreamReader SR = new StreamReader()SR = File.Open("File.txt");String contentText = SR.Readline();txtBox.text = contentText;BUT THIS ONLY WORK FOR files in the server.I would like to be able to read FILE CONTENTS from SQL Server.PLEASE HELP. I really appreciate it.

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SQL Server 2008 :: Create Authentication Account With Read-write Access To Only 1 Table?

Apr 7, 2015

How can I create a SQL authentication account with read-write access to only 1 table in a SQL database.

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SQL Server Admin 2014 :: Calculating Average Read / Write Latency Across Instance Using Counters

Apr 27, 2015

How 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?

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XML Read And Write

Apr 4, 2004

Pls help guys

I need to know whether its possible to read or write in to XML documents from SQLServer directly using stored procedures.

I basically need to created a number of XML documents on a nightly basis.,..........also i need to read a no of XML docs to SQLServer...

Is it wise to use stored procedures for this?
Or are there performance issues.........and do u suggest doing in in .NET


Your comments are appreciated..

Regards

Benny

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Different Cpu Read Write

Apr 15, 2008



I have a query that runs for 10 sec on one database( A) and 5 min on another database(B) even though two database have identical scheam, tables, index and statistics..


I ran a profiler and got the below information
CPU READ Write
Database A: 92051 711956 8774
Database B: 91812 7621589 315822


A query runs on database has a significant larger read and write.. I don;t understand why this is happening? even though these two database have the same structure?? it has the same execution plan as well..


How can i solve this issue?

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Batch File - Read From One Table And Write To Another Database And Table

Nov 17, 2011

Any 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

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Read/Write To Same Table

Oct 17, 2001

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?

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Write In And Read From My_File.txt

May 31, 2004

Hi ..
I want to Write in files or read from files
for example i have My_File.txt . i need a syntax and i want to call this syntax in my Store procedure and this syntax write forexample " Hello Word " in My_File.txt .
and i want another syntax that read from My_File.txt forexample "Word" from My_File.txt . what are those syntaxes do that ??

thanks

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Read/Write Performance

Apr 21, 2006

Hello,

We currently run sql 2005 server and also sql express in our dev environments. We use sql express as an offline store (smart client). We have a similar/exact schema on the sql 2005 server and also the express.

We use the auto attach feature to connect to the express version of the database. Both the developer machines and the one that is running the sql 2005 server have exactly the same hardware configuration. The only difference may be that the server box is not running the VS.Net environment. The disk space etc is pretty much the same. Actually we run another database server(DB2) on the 2005 server machine.

We have observed that sql express is much slower and queries execute much slower aswell. For example, this may not be a totally scientific way of checking but a long running query on the server took only 2 minutes while on express it took longer than 9 minutes. The schema and data etc are the same.

Is there something we need to look into as far as read write speed/performance goes ?

TIA,

Avinash

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Read/Write For Variables

Aug 3, 2007

Hi,

I am using a Script Component and I have a Read/Write Variable varStatusCase (as assigned in the Custom Properties of my Script Component). I used this inside my script to get a specific value. However, when I ran it I get this error:

The collection of variables locked for read and write access is not available outside of PostExecute.

How do I repair this?

Thanks,

cherriesh

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Read And Write A Constraint Or Default Value

Nov 20, 2007

Okay, maybe I'm getting ahead of myself.
Using SQL Server Express, VWD and .net 2.0 I've figured out how to drop a Table Column Constraint or Default Value/Binding and then Create it again using a stored procedure. What I can't figure out is how to retrieve that column's constraint value and write it to, say a label, in an aspx page, simply for reference. Is it possible? In this case the Data Type of the column is money.
I'm using it to perform a calculation to a column with a value that the user inserts into another column. (Column1(user input) minus Column2(with Default Value) = Column3(Difference). I just want to read Column2's Default Value for reference so I know whether to change it or not.

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Denormalization, 2 Databases , 1 Read 1 Write Db

May 28, 2008

Hi,
I was reading that many of these high traffic websites actually have 2 databases, 1 database is used ONLY for reads, while the other is for writes.

How does one go about creating such a setup? How does the database where writes are allowed replicated the data to the read only database server?

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Jul 23, 2005

Hi,I would like to use database locking mechanism to control access to anexternal resource (like file system).What I need is1. an exclusive (write) lock conflicting with any access to theresource (both for read and write)2. non-exlusive (read) lock conflicting with writes onlyHow this could be done?I'd appreciate any reply.Vadim

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Read/Write Operation On SQLCE 3.0 Using VC++

Jan 29, 2008

Dear All,

I am looking for a sample code to do read/write operation on SQLCE 3.0 using VC++. For SQLCE 2.0 I have used ATL Consumer template and works well.

Thanks in Advance.

Param

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Aug 2, 2007

Hello Guys,
in SSIS I want to get a set of data and do some modifications on it before I insert it into the destinatipn. So far so good. Some of the modifications will include comparisions between two columns and if certain field is NULL then I want to get the value from the other one I was comparing to. When using conditional splits, I only get the rows to be redirected so that I can do whatever next. However, I want like use the variables as a storage so that I can put the value of one of the two columns in this variable which will be actually loaded into the destination finally. Any help?
Thanks

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Read / Write Into .doc From SQL Stored Procedure

Jun 25, 2007

I need to create a flat file as word document, may i know how to write text from stored procedure if a file is already exist then the text will append, how to do it ?



Thank you.

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Password To Read/write My Query

Feb 6, 2008

I use excel as an interface to write query to retrieve data from a database in network drive. My problem is everyone can open and edit my query. Of course, the univeral database access user name and password will ask but everyone know this.
How can I put password to prevent any query modification?

Thanks
Daniel

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Last Read/write Time Of Table

Jul 14, 2007

Is 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.

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