SQL Server 2012 :: How To Do OPENROWSET Query Within Cursor Using Variables
Oct 22, 2015
I am writing a custom query to determine if a legacy table exists or not. From My CMS Server I already have all the instances I have to query and I store the name of the instance in the @Instance variable. I cannot get those stubborn ticks to work right in my query. Below I am using the IF EXISTS statement to search the metadata for the legacy table.
DECLARE @Found tinyint
DECLARE @Instance varchar(100)
set @Instance = 'The Instance'
IF (EXISTS (SELECT a.*
FROM OPENROWSET('SQLNCLI', 'Server=' + @Instance + ';UID=DBAReader;PWD=DBAReader;','SELECT * FROM [DBA].INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = ''TheTable''') AS a))
SET @Found = 1
ELSE
SET @Found = 0
I have a directory with images and a table in my DB with the path of each file. The main application allow me to create reports where I can display an image, so I was thinking to use a query like:
SELECT [ID] ,[PT_CODE] ,[FILE_PATH], CASE WHEN [FILE_PATH] IS NOT NULL THEN (SELECT * FROM OPENROWSET(BULK [FILE_PATH], SINGLE_BLOB) TT) END AS IMAGE_LOADED FROM [DB].[dbo].[TABLE_MR_FILES]But I keep getting the error:
Incorrect syntax near 'FILE_PATH'.I have try multiple combinations without luck to make the OPENROWSET read the path stored in the column [FILE_PATH]. What am I missing?
Note: I am using MSSQL 2012. I don't want to import the images into the DB just load them in the fly as needed by the report runned from the application. I have full access to the DB so if a store procedure is the solution I can go with it.
This store procedure will get some executable queries from the select statement, the cursor will fetch each rows to execute the query and insert the queries into table_3 to mark as 'E'. Until 17:00, this store procedure will stop execute the queries and just get the queries from select statement insert into table_3 to mark as 'C'.
I don't know why the outputs in table_3 are quiet different than I think. This store procedure comes out with two exactly same queries and one marked as C and another marked as E.
CREATE PROCEDURE procedure1 AS DECLARE cursor_1 CURSOR FOR SELECT 'This is a executable query' FROM table_1 DECLARE @table_2
Here the SELECT query is fetching the records corresponding to ITEM_DESCRIPTION in 5 separate transactions. How to change the cursor to display the 5 records in at a time in single transactions.
CREATE TABLE #ITEMS (ITEM_ID uniqueidentifier NOT NULL, ITEM_DESCRIPTION VARCHAR(250) NOT NULL)INSERT INTO #ITEMSVALUES(NEWID(), 'This is a wonderful car'),(NEWID(), 'This is a fast bike'),(NEWID(), 'This is a expensive aeroplane'),(NEWID(), 'This is a cheap bicycle'),(NEWID(), 'This is a dream holiday') --- DECLARE @ITEM_ID uniqueidentifier DECLARE ITEM_CURSOR CURSOR
I have an XML file about 25MB. When I read it with openrowset it gives me 'System.OutOfMemoryException'. The machine I'm running has 16GB of RAM and memory is definetely not exceeded. When I run smaller XML files it works fine.
I've read that older versions of SQL Server had this problem and it was caused by the parser having limited amount of memory. Is this still the case? Is there a way to change this?
Hello All,I am trying to use a variable(@varStr ) in a cursor declaration. But I am unable to use it. something like:declare @intID as intset @intID = 1DECLARE curDetailRecords CURSOR FOR (select fnameFrom Customers where id = @intID)Can we not use a variable in a cursor declaration.?ThanksImran
I have used cursors in a similar way 100 times (but not in a couple years). I am selecting 4 columns from a table and inserting them into 4 variables and then calling a stored proc with those 4 and a few other already defined variables. The already set variables are fine. But the variables which should be set by the cursor are coming up as NULL (I can tell because they are spit out as 'NULL' by the RAISERROR). There are no rows with NULL values in the table...
BEGIN TRY -- Set CR First Last for each report type DECLARE@RowNumOrderBy VARCHAR(40), @StatCode VARCHAR(50), @UpdateTargetField VARCHAR(50), @UpdateSourceField VARCHAR(50)
I have a cursor that goes through a table with the names of all the database in my server. So for each fetch, the cursor gets the name of a database and assign it to a variable, @databaseName, and try to do some queries from that database by using the command "USE @databaseName". But "USE" doesn't take the variable @databaseName; it is expecting a database name (i.e. USE master).
Here is my code:
Declare @databaseName varchar(50) Declare c_getDatabaseName CURSOR for SELECT name from tblDatabases OPEN c_getDatabaseName FETCH NEXT from c_getDatabaseName into @databaseName While @@FETCH_STATUS = 0
I have problems to place my variable into the select statement.
DECLARE @DB_NAME varchar(64) DECLARE MR_ReqPro_DB_cursor CURSOR FOR select name from dbo.sysdatabases where name like '%MR_req%' OPEN MR_ReqPro_DB_cursor FETCH NEXT FROM MR_ReqPro_DB_cursor INTO @DB_NAME
WHILE @@FETCH_STATUS = 0 BEGIN print @DB_NAME; --works fine
Select NAME, FILEDIRECTORY FROM @DB_NAME.MR_ReqPro.RQDOCUMENTS WHERE (FILEDIRECTORY LIKE '%\%');
FETCH NEXT FROM MR_ReqPro_DB_cursor INTO @DB_NAME END CLOSE MR_ReqPro_DB_cursor DEALLOCATE MR_ReqPro_DB_cursor
GO
How could i use a variable like @DB_Name in my select ?
I have a table called Table1 where I have five fields like Tableid, Processigndate, Amount, remainingCollectonCount and Frequency. All total I have more than 5Lacs records.
Now I need to fill up another table Called FutuecashFlow taking the records from Table1. There will be also five Columns like FutureCashflowid, Table1id, Processigndate, Amount.
Now the condition is that if the remainingCollectonCount =6 and the frequency is 12 then there will be the 6 entries in the futurecasflow table where the prcessign datae wille be addeed by 1 month.
For example Table1 Tableid, Processigndate Amount remainingCollectonCount Frequency 1 2014-02-15 48 8 12
the future cash flow table the prcessing date column will be shown in the following way
I need to use WHILE to avoid Cursor under certains conditions.
My SELECT statement is:
SELECT ref, ano, numberofyears ,nreint, naoreint,degress, tabela, tax, taxamaxima,[evactual], [evaldepact],[ereintact],nrregbt,[taxAmtAno] FROM deprec ORDER BY [ref] ASC
numberofyears= 100 /tax for exemple for a good where lifecycle is 4 years ,ex: Tax = 25% Then 100/25 = 4 years
I see this WHILE script, but i need to run :
1. for each REF + Until years < 4 in this exemple, because i have goods years depend on Percent.
the WHILE script i see is:
DECLARE @table1 TABLE (Id int not null primary key identity(1,1), col1 int ) INSERT into @table1 (col1) SELECT col1 FROM table2 SET @num_rows=@@ROWCOUNT
SET @cnt=0 WHILE @cnt<@num_rows
[Code] .....
My doubt is how to make the LOOP for each REF until Year < 4 (like my example)
I am trying to calculate cumulative GPA which is currently it is being done via a cursor and i was looking to change it to set based if possible.
The cumulative GPA is basically the average marks of all courses in a term and all previous terms. Where I am having an issue is if the course was taken in a previous term and the mark was lower, then the lower mark in not factored in to the GPA. If a course was taken in a previous term and the mark was higher then the marks for the current term are not factored into the GPA.
In the example below, math is taken in all three terms and the current term's mark is included in the GPA but not the previous terms because current terms mark is higher. Two classes (bio,chem) are taken in third term but not included due to marks being higher in second term.
I like to backup the stored procedures' code used in my databases. So I created this Script:
/* IF OBJECT_ID('[Monitor].[dbo].[Procedurecode]') IS NOT NULL DROP TABLE [Monitor].[dbo].[Procedurecode]; */ DECLARE @db nvarchar(50), @strSQL nvarchar (100) IF CURSOR_STATUS('global','cur1')>=-1 BEGIN DEALLOCATE cur1 END
[code]....
Problem is (and I seem not to be the only one with tis) described here:
"If the executed string contains a USE statement that changes the database context, the change to the database context only lasts until sp_executesql or the EXECUTE statement has finished running." There is nothing magical in SQL server that knows you intend a series of dynamic sql commands to be part of a single job running in a single context. You have to build the entire string for the job you want to execute."
I'm rewriting a huge FOR XML EXPLICIT procedure to use FOR XML PATH, and need to compare previous output to the refactored one, so i didn't mess up XML structure.
The thing is, i'm not sure that SQL Server will always generate exactly same xml **string**, so i'd rather not compare by:
WHERE CAST(@xml_old AS NVARCHAR(MAX)) = CAST(@xml_new AS NVARCHAR(MAX))
nor do i want to manually validate every node, since the generated xml-structure is quite complex.
They are sent to the sproc as null. Since they could be null I need to exclude them from posting to a temp table
Example
DECLARE @QuantityID uniqueidentifier, @LengthID uniqueidentifier, @CostID uniqueidentifier SET @CostID = NEWID() SELECT @QuantityID as ID UNION ALL SELECT @LengthID UNION ALL SELECT @CostID
Two values are null. I want those excluded from this table
Here is the example of what I am trying to do:
DECLARE @QuantityID uniqueidentifier, @LengthID uniqueidentifier, @CostID uniqueidentifier DECLARE @Temp as Table (id uniqueidentifier NOT NULL Primary key) SET @CostID = NEWID() INSERT INTO @Temp SELECT @QuantityID as ID UNION ALL SELECT @LengthID UNION ALL SELECT @CostID
I am having a recurring issue that involves a stored proc using OPENROWSET to query an excel file. I used the surface area config to enable this on the server, and made sure that is still set. After an undetermined amount of time, the OPENROWSET query starts failing with this message:
OLE DB provider "Microsoft.Jet.OLEDB.4.0" for linked server "(null)" returned message "Unspecified error". Msg 7303, Level 16, State 1, Line 1 Cannot initialize the data source object of OLE DB provider "Microsoft.Jet.OLEDB.4.0" for linked server "(null)".
I corrected this previously by restarting the SQL server, but not before I checked permissions, the excel file itself, etc, and that was the last thing to try.
I am using SQL 2005 with SP1 installed - my primary approach to tackling this issue is to install the SP2, but I did not find this bug referenced in the fixes, and was wondering if anyone else had further insight.
I have a situation where I need to call a stored procedure once per each row of table (with some of the columns of each row was its parameters). I was wondering how I can do this without having to use cursors.
Here are my simulated procs...
Main Stored Procedure: This will be called once per each row of some table.
-- All this proc does is, prints out the list of parameters that are passed to it.
CREATE PROCEDURE dbo.MyMainStoredProc ( @IDINT, @NameVARCHAR (200), @SessionIDINT ) AS BEGIN
[Code] ....
Here is a sample call to the out proc...
EXEC dbo.MyOuterStoredProc @SessionID = 123
In my code above for "MyOuterStoredProc", I managed to avoid using cursors and was able to frame a string that contains myltiple EXEC statements. At the end of the proc, I am using sp_executesql to run this string (of multipl sp calls). However, it has a limitation in terms of string length for NVARCHAR. Besides, I am not very sure if this is an efficient way...just managed to hack something to make it work.
I have a temptable with a list of user IDs that I want to drop so I created a script to do a cursor and run through my drop functions. The drops work by themselves and the ver check works with them but when I wrap them in the cursor all i get is an output for each user in the results window in ssms. why it's not setting the variable and instead outputting to results?
DECLARE @ver nvarchar(128); DECLARE @UserName nvarchar(50); DECLARE @UserD nvarchar(80); DECLARE @LoginD nvarchar(80); -- Initialize the variable. SET @ver = CAST(serverproperty('ProductVersion') AS nvarchar)
What i need is to create a function that compares 2 strings variables and if those 2 variables doesn't have at least 3 different characters then return failure , else return success.
I have stored procedure .In SP i am using cursur to load data from Parent to several child table.
I have attached the script with this message.
And my problem is how to use direct select and insert or load to speedup the process instead of cursor.
USE [IconicMarketing] GO /****** Object: StoredProcedure [dbo].[SP_DMS_INVENTORY] Script Date: 3/6/2015 3:34:03 PM ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO
so async cursor population is supposed to create the cursor and return the cursor id quickly, while the server works on async populating the results. For a keyset-driven cursor, SQL Server stores the key sets in tempdb, which it then uses to fetch data for cursor results. Anyway, this works fine for smaller tables, but I'm finding for large result sets, the async cursor population is very slow and indeed seems to approximate synchronous time. The wait stat I get while it is running (supposedly asynchronously) is TRANSACTION_MUTEX.
Example: --enable async cursor exec dbo.sp_configure 'cursor threshold', 0; reconfigure; declare @cursor int, @stmt nvarchar(max), @scrollopt int, @ccopt int, @rowcount int; --example of giant result set set @stmt = 'select * from sys.all_objects o1, sys.all_objects o1';
[code]...
Note that using the SQL "select * from sys.all_objects o1" is much faster than "select * from sys.all_objects o1, sys.all_objects o2". However, if cursor population is async, I'd expect the time to return a cursor id to be similar between the two.
getting SQL able to import files via ORS. So we got it to work on local drives, but not over networked drives. This is the code and error:
select * into sample.dbo.[eriktest] from OPENDATASOURCE('Microsoft.ACE.OLEDB.12.0', 'Data Source=serverSample est.xlsx; Extended Properties="Excel 12.0 XML;HDR=YES;IMEX=1"')...[Sheet1$] Msg 7399, Level 16, State 1, Line 1 The OLE DB provider "Microsoft.ACE.OLEDB.12.0" for linked server "(null)" reported an error. The provider did not give any information about the error. Msg 7303, Level 16, State 1, Line 1 Cannot initialize the data source object of OLE DB provider "Microsoft.ACE.OLEDB.12.0" for linked server "(null)".
But going from the local C: or D: drives is fine. I also tried using xp_cmdshell (OPC) to map a drive, and then tried using ORS with the drive letter, and got the same error.
I can't understand why I get 2 different results on running with a Bracket I get 'NULL' and without a bracket I get the declared variable value which is 'Noname'
Below is Query 1:
Declare @testvar char(20) Set @testvar = 'noname' Select @testvar= pub_name FROM publishers WHERE pub_id= '999' Select @testvar
Out put of this query is 'Noname'
BUT when I type the same query in the following manner I get Null-------Please note that the only difference between this query below is I used brackets and Select in the Select@testvar statement
Declare @testvar char(20) Set @testvar = 'noname' Select @testvar=(Select pub_name FROM publishers WHERE pub_id= '999') Select @testvar
I have SSIS 2012 Enterprise, using catalog deployment and have more that 50 environment variables for connection to databases across my enterprise.
The problem when i go to configure the packages after deployment and pick the proper env variables, that are not sorted, so i have to browse all entries in order to find the proper entry in environment variables.
I have a test server (TEST1) running SQL 2012 and Windows 2012R2. One of the developers wants to use OPENROWSET to read in data from an Excel 2010 file (an xlsx file).
I have loaded the Microsoft Drivers in "AccessDatabaseEngine_64.exe" and enabled the Ad Hoc Distributed Queries option in SQL.
This is the sample code we are working with:
SELECT X.MEMBID FROM OPENROWSET( 'MSDASQL', 'Driver={Microsoft Excel Driver (*.xls, *.xlsx, *.xlsm, *.xlsb)};DBQ=etworkserverFolder1Folder2MEMBIDs.xlsx', 'SELECT * FROM [Sheet1$]' ) AS X
I can run the sample query from my laptop with SSMS (I have admin rights) and I can also run it as SA from my laptop. So all is good, right?
But if I RDC into TEST1, I cannot run the query. I get this error:
OLE DB provider "MSDASQL" for linked server "(null)" returned message "[Microsoft][ODBC Excel Driver] Your network access was interrupted. To continue, close the database, and then open it again.". OLE DB provider "MSDASQL" for linked server "(null)" returned message "[Microsoft][ODBC Excel Driver]General error Unable to open registry key Temporary (volatile) Ace DSN for process 0x574 Thread 0xb74 DBC 0x1d07f08 Excel'.". OLE DB provider "MSDASQL" for linked server "(null)" returned message "[Microsoft][ODBC Excel Driver]General error Unable to open registry key Temporary (volatile) Ace DSN for process 0x574 Thread 0xb74 DBC 0x1d07f08 Excel'.". Msg 7303, Level 16, State 1, Line 1 Cannot initialize the data source object of OLE DB provider "MSDASQL" for linked server "(null)".But wait! It gets better.
I can run the query as SA from TEST1.
And of course, the developer can't run it either.
And it works fine in the production server.
I'm thinking the basics are there but something isn't right in some permission somewhere.
I'm trying to query an excel file and I get a mistake. The query is as follows:
SELECT * FROM OPENROWSET('Microsoft.Jet.OLEDB.4.0', 'Excel 8.0;Database=C:ExcelFile.xls', 'select * from Sheet1')
and I get the following error message:
Server: Msg 7399, Level 16, State 1, Line 1 OLE DB provider 'Microsoft.Jet.OLEDB.4.0' reported an error. [OLE/DB provider returned message: The Microsoft Jet database engine could not find the object 'Book1'. Make sure the object exists and that you spell its name and the path name correctly.] OLE DB error trace [OLE/DB Provider 'Microsoft.Jet.OLEDB.4.0' IColumnsInfo::GetColumnsInfo returned 0x80004005: ].
I'm trying to pass through a SQL statement to an Oracle database usingOPENROWSET. My problem is that I'm not sure of the exact syntax I needto use when the SQL statement itself contains single quotes.Unfortunately, OPENROWSET doesn't allow me to use parameters so I can'tget around the problem by assigning the SQL statement to a parameter oftype varchar or nvarchar as inSELECT *FROM OPENROWSET('MSDAORA','myconnection';'myusername';' mypassword',@chvSQL)I tried doubling the single quotes as inSELECT *FROM OPENROWSET('MSDAORA','myconnection';'myusername';' mypassword','SELECT *FROM AWHERE DateCol > To_Date(''2002-12-01'', ''yyyy-mm-dd'')')But that didn't work. Is there a way out of this?Thanks,Bill E.Hollywood, FL
