How do we transfer the content of a string variable to a file on a SP? I need to do these:
Create an empty text file from an SP
Push the content of a variable (whose len is 25487) to the newly created file
The variable size is Varchar(Max), and this is the code I am trying to make work (but it ain't [Sad] ) ---
Declare #cmd sysname
Declare #ReqContent Varchar(max)
SET #cmd = 'echo ' + #ReqContent + ' > C:\DD4TRD.txt'
EXEC master..xp_cmdshell #cmd ,NO_OUTPUT
Thanks,
Sayan
Check out this sproc from Reading and Writing Files in SQL Server using T-SQL.
Related
I'm trying to run the script below, but it returns null. When I run the DOS command, it generates the file normally.
DECLARE #str VARCHAR(1000)
SET #str = 'bcp "Select * FROM WDG.dbo.Facilidade" queryout "w:\xyzTable.txt" -S "WDG-NOTE24\MSSQLWDG" -T -c -t ; '
EXEC xp_cmdshell #str
GO
I need to return a separate txt file for ';' with query data
Tanks
Given your error in your comments i will follow this link and as i described earlier its an access problem to your folder.
Remember it should be given to your Sql service account user and not your self
BCP unable to open BCP host access
I managed to make it work, I found the command below that tests if it has access to the directory.
For some reason did not accept the old path, so I created another one on another disk and it worked.
EXEC master..xp_cmdshell 'DIR C:\sql'
Very thank's for help.
I have a problem, at the end of my import file, it comes with the text '--END--', and when the bulk insert is going to render, it displays an unexpected end message.
I can put some parameter so that when it finds the text it finishes the import.
declare #sql varchar(max)
set #sql = 'BULK INSERT Temp_Facilite FROM ''' + ##FullPath + '''WITH (FIRSTROW = 2,CODEPAGE = ''RAW'',FIELDTERMINATOR = '';'',ROWTERMINATOR = ''0x0A'',MAXERRORS = 3, KEEPNULLS );'
exec (#sql)
I have been playing around with database backup automation scripts and in particular the one at this link:
http://support.microsoft.com/kb/2019698
I got everything working fine and even added automated compression using 7zip, logging, and with the help of vbscript an email scheduled notification. However, even without all that, you can see this is a bit heavy. Its now easily reaching 400 lines of code.
I am really not comfortable having all my stuff in one block like this and I want to separate it out. So I can have say a compression file called BackupCompress.sql, and an log file called BackupLogReport.sql all of which would be called from inside the main Backup.sql script.
The Backup.sql script is in turn run from a Backup.bat file which is set to run in the scheduler.
All of this works like a charm. But I am at a loss as to how to call BackupCompress.sql from within BackupLogReport.sql and pass in parameters and get a return value.
In the Backup.bat file I use this command to spin everything up and pass parameters to it:
SQLCMD -S %SQLDATABASE% -d master -i %BACKUP_FOLDER%\Backup.sql -v Pram1="%Pram1%"
In the Backup.sql file I get those parameters simply by:
DECLARE #Param1 NVARCHAR(256) = '$(Param)'
from then on as my script runs it uses whatever I want to pass in.
I tried using standard sql stored procedure logic to call another procedure like this:
EXEC BackupCompress.sql
#AnotherParam = #Param1
I also tried:
EXECUTE sp_executesql BackupCompress.sql #Param1
Finally I tried:
SET #cmd = 'SQLCMD -S ' + ##ServerName + ' -d master -i $(BACKUP_FOLDER)\BackupCompress.sql -v Param1 = ' + #Param1
EXEC xp_cmdshell #cmd, no_output
but it doesn't work and my files which were being compressed simply don't get compressed. I get no error message. everything else continues to work fine.
EDIT: I was getting an error message on the last one but I fixed it - however, I still don't get my little zip file. I even put print's into the file to see if it was actually be executed but it does not seem to be.
EDIT2: Another option I have tried, almost works, but cant figure out how to pass parameters from within the sql file to the other file... As a result it generates an error saying it cant find the file as it's treating the path as a literal string instead of the variable value I want to pass.
:!!SQLCMD -S ##ServerName -d master -i #CFG_BACKUP_PATH\BackupCompress.sql -v Param1 = #Param1
xp_cmdshell can return values. These values can be captured into a table variable that you could use to "see" the results, and perhaps determine where the problem lies:
DECLARE #cmd VARCHAR(255);
DECLARE #Param1 NVARCHAR(256) = '$(Param)';
DECLARE #Results TABLE
(
ResultsText NVARCHAR(MAX)
);
SET #cmd = 'SQLCMD -S ' + ##ServerName + '-d master -i $(BACKUP_FOLDER)\$(BackupCompress.sql) -v Param1 = ' + #Param1;
SET #cmd = 'DIR \';
INSERT INTO #Results (ResultsText)
EXEC xp_cmdshell #cmd;
SELECT *
FROM #Results;
You need to ensure xp_cmdshell is enabled for the instance, by executing:
EXEC sp_configure 'xp_cmdshell',1;
I have some columns with image data type and I want to preview (or browse) the data in those tables. When I use Select top 1000 rows in SQL Server Management Studio, the value of image columns is displayed in hexadecimal. What’s the easiest way to preview those images since the hex-value is not useful to me?
PS.: database is not under my control, so changing data type is not an option.
If you have LinqPad installed, previewing images is simple. Query your record, convert the binary data to an image, then dump the output to the preview window.
Edit: If you aren't aware, LinqPad is a free utility that can be used for many things, such as a replacement for management studio. Most of the time I use it as a scratch pad for .Net for throw-away programs, test code, and samples.
var entity = // fetch data
using (var ms = new MemoryStream(entity.Image.ToArray()))
{
System.Drawing.Image.FromStream(ms).Dump();
}
Here's what the result looks like:
I would write a proc (or query; see below) to export the binary out to the file system and then use any old off the shelf photo management utility (i.e. Windows Photo Viewer) to take a look at what's inside.
If your clever in your file naming you could give yourself enough information about each image in the name to quickly find it in the database again once you've visually located what your looking for.
Here is a proc that will export binary to the file system. I modified from this sample code. It's untested but should be extremely close for concept. It's using BCP to export your binary. Check here for the full docs on the BCP utility.
The proc also gives you the ability to export everything in the table, or only a single row based on a the passed primarykey. It uses a cursor (yuck), as well as some dynamic sql (yuck, yuck) but sometimes you gotta do what you gotta do.
CREATE PROCEDURE ExportMyImageFiles
(
#PriKey INT,
#OutputFilePath VARCHAR(500)
)
AS
BEGIN
DECLARE #sql VARCHAR(8000)
IF #PriKey IS NULL /* export all images */
BEGIN
DECLARE curExportBinaryImgs CURSOR FAST_FORWARD FOR
SELECT 'BCP "SELECT MyImage FROM [dbo].[MyTable]
WHERE PrimaryKey =' + CAST(PrimaryKey AS VARCHAR(25)) +
'" queryout ' + #OutputFilePath + MyImageName + '.' +
MyImageType + ' -S MyServer\MyInstance -T -fC:\Documents.fmt'
FROM [dbo].[MyTable]
OPEN curExportBinaryImgs
FETCH NEXT FROM curExportBinaryImgs INTO #sql
WHILE ##FETCH_STATUS = 0
BEGIN
EXEC xp_cmdshell #sql, NO_OUTPUT
FETCH NEXT FROM curExportBinaryImgs INTO #sql
END
CLOSE curExportBinaryImgs
DEALLOCATE curExportBinaryImgs
END
ELSE /* Export only the primary key provided */
BEGIN
SELECT #sql = 'BCP "SELECT MyImage FROM [dbo].[MyTable]
WHERE PrimaryKey =' + CAST(PrimaryKey AS VARCHAR(25)) +
'" queryout ' + #OutputFilePath
+ MyImageName + '.' + MyImageType +
' -S MyServer\MyInstance -T -fC:\Documents.fmt'
FROM [dbo].[MyTable]
WHERE PrimaryKey = #PriKey
EXEC xp_cmdshell #sql,NO_OUTPUT
END
END
This is all assuming of course that what is stored in your Image column is actually an image and not some other file type. Hopefully if it is an image you also know the type, bmp, jpg, png, gif, etc.
If you don't want the hassle or reusability of a full blown proc try single query like this:
DECLARE #OutputFilePath VarChar(500) = /* put output dir here */
DECLARE #sql VARCHAR(8000)
DECLARE curExportBinaryImgs CURSOR FAST_FORWARD FOR
SELECT 'BCP "SELECT MyImage FROM [dbo].[MyTable]
WHERE PrimaryKey =' + CAST(PrimaryKey AS VARCHAR(25)) +
'" queryout ' + #OutputFilePath + MyImageName + '.' +
MyImageType + ' -S MyServer\MyInstance -T -fC:\Documents.fmt'
FROM [dbo].[MyTable]
OPEN curExportBinaryImgs
FETCH NEXT FROM curExportBinaryImgs INTO #sql
WHILE ##FETCH_STATUS = 0
BEGIN
EXEC xp_cmdshell #sql, NO_OUTPUT
FETCH NEXT FROM curExportBinaryImgs INTO #sql
END
CLOSE curExportBinaryImgs
DEALLOCATE curExportBinaryImgs
The image type isn't for storing images, it's just 'variable-length binary data'. This type is deprecated and you should now use varbinary(max) for variable length binary data.
Since the SQL Server has no knowledge of what type of binary data has been stored (.zip, .exe, .jpg, .anything) it's not surprising Management Studio doesn't provide a preview.
You definitely can't preview these data types in Managment Studio, but I like the solution given by #RTomas.
There is a really great add-in for SSMS SSMSBoost which which provides plenty of useful features, and of course the simplest way to preview images stored in SQL(at least in my opinion)
NOTE : You must restart SSMS after installing this add-in.
Install it and enjoy previewing images just with : RightClick > Visualize As > Picture
I don't know of a way to accomplish this in Management Studio. You'd probably be better server writing a simple application that can query the database and then convert the hex into the correct image type (.jpg, .png, etc). There are also commercial applications that will do this for you.
Using linqpad the code could become even simpler
Ones you have the entity/type with you on the binary data column you would see .ToImage() method
For my case I am looping through all the rows and publishing all binary columns to images.
Hope it helps.
var yourData_Or_List = // fetch data
DataItem_Or_ListItem.BinaryDataColumn.ToImage().Dump();
Im using Sql2008 trying to run this BCP command but it never creates the file.
-- Export query
DECLARE #qry2 VARCHAR(1000)
SET #qry2 = 'SELECT * FROM #SkippedProductsTable'
-- Folder we will be putting the file in
DECLARE #incomingfolder VARCHAR(1000)
SET #incomingfolder = 'c:\Logs'
DECLARE #bcpCommand VARCHAR(2000)
SET #bcpCommand = 'bcp "'+#qry2+'" queryout "'+#incomingfolder+'\SkippedProducts-'+CAST(#StoreMatchCode AS VARCHAR)+'-'+'.txt" -c -T'
PRINT #bcpCommand
EXEC MASTER..xp_cmdshell #bcpCommand, no_output
The created command looks like:
bcp "SELECT * FROM #SkippedProductsTable" queryout "c:\Logs\SkippedProducts-1330-.txt" -c -T
Can anyone suggest what could be going wrong? I've never used BCP before and not really sure where to start looking.
As a start I know that the folder deffinately exists at that location
I think the problem is the SELECT.
You are SELECTing from a table variable that is not declared in the query, so there's nothing for BCP to do.
Table variables only persist for the context they are called in, so even if you have one in a query, and you have dynamic sql or a subproc within that first query, they won't be able to see the table variable.
See this for more info.
I am calling an SSIS package remotely using a stored procedure and a call to xp_cmdshell:
declare #cmd varchar(5000)
set #cmd = '"C:\Program Files (x86)\Microsoft SQL Server\100\DTS\Binn\dtexec.exe" /Rep E /Sql Package /SET \Package.Variables[User::ImportFileName].Value;c:\foo.xlsx'
print #cmd
exec xp_cmdshell #cmd
This works fine, however I can not guarantee the variable value (c:\foo.xslx) is not going to contain spaces so I would like to escape that with quotes like below:
set #cmd = '"C:\Program Files (x86)\Microsoft SQL Server\100\DTS\Binn\dtexec.exe" /Rep E /Sql Package /SET \Package.Variables[User::ImportFileName].Value;"c:\foo.xlsx"'
But by doing this I get the error
'C:\Program' is not recognized as an internal or external command, operable program or batch file.
Both of the above commands work fine if executed within cmd.exe so I am guessing that SQL Server is interpreting my double quotes and changing something, but I can't figure out what.
In a nutshell, put CMD /S /C " at the beginning, and " at the end. In between you can have as many quotes as you like.
Here is how you do it:
declare #cmd varchar(8000)
-- Note you can use CMD builtins and output redirection etc with this technique,
-- as we are going to pass the whole thing to CMD to execute
set #cmd = 'echo "Test" > "c:\my log directory\logfile.txt" 2> "c:\my other directory\err.log" '
declare #retVal int
declare #output table(
ix int identity primary key,
txt varchar(max)
)
-- Magic goes here:
set #cmd = 'CMD /S /C " ' + #cmd + ' " '
insert into #output(txt)
exec #retVal = xp_cmdshell #cmd
insert #output(txt) select '(Exit Code: ' + cast(#retVal as varchar(10))+')'
select * from #output
After looking into this, it appears you have to use the DOS 8.3 notation with xp_cmdshell e.g. c:\progra~1... and you can only have one set of quotes on the arguments.
To get around this limitation, either use the older DOS notation, or put your code in a batch file instead which will run fine.
Source: http://social.msdn.microsoft.com/forums/en-US/sqlintegrationservices/thread/4e7024bb-9362-49ca-99d7-1b74f7178a65