Can someone please provide sample code for the following
I need to copy data from SQL Server database to a Microsoft Access database. I am using VBA.
I have an Access table "Loadtime". Required data is in a recordset ObjRecSQL. Same columns, Data types match etc. I populated ObjrecSQL from tables in a SQL Server database based on some conditions. I need to get all the data in ObjrecSQL updated to Loadtime without looping. Looks like UpdateBatch does it. But how do i copy from ObjrecSQL to a new recordset and indicate that it needs to update Loadtime.
Related
i am working on a large database ,how do i Export some database tables without having dba privileges .do i have to copy the structures of the tables and using spool command to get the data in a text file then create the tables and inserting data from the text file?
One of the methods would be to install Oracle SQL Developer and export the required table structures and data using the wizard.
Here is the link to a tutorial which can guide you if you go with this option.
http://www.oracle.com/webfolder/technetwork/tutorials/obe/db/sqldev/r30/SQLdev3.0_Import_Export/sqldev3.0_import_export.htm
A second option would be to use SQL Loader to load data in your target tables. But for that you will have to first create the data structures on your target schema and spool the data from your source tables in CSV (comma separated values) or any other eligible format.
Here is a link for SQL Loader.
http://docs.oracle.com/cd/B28359_01/server.111/b28319/ldr_concepts.htm
A third option would be that you create the table structures on the target schema and generate the insert statements from the source schema using a script. Here is a link to such an example.
https://pandazen.wordpress.com/2008/08/18/generate-insert-statement-script-to-extract-data-from-oracle-table/
I would recommend going with the SQL Developer option since it is relatively simple.
I have an excel spreadsheet which has some data, I want to essentially join that with a table in the prod db to which I have only read only access.
Is there an easy way to do this?
Since I can't actually create a table and actually join, I was wondering if there is a way sql developer can store the data in memory.
I'm trying to describe a virtual table.
Specifically I'm working with SQL developer and an Oracle DB. If there are other free tools which support this, then I'm happy to use them too.
Hey EXPERIENCED SSIS DEVELOPERS, I need your help.
High-Level Requirements
Query SQL Server table (on a different server than my SSIS server) resulting in about 200-300k records results set.
Use three output colums for each row to lookup date in Oracle database.
Insert or Update SQL Server table with results.
Use SSIS.
SQL Server 2008
Sounds easy, right?
Here is what I have done:
Created on Control Flow Execute SQL Task that gets a recordset from SQL Server. Very fast, easy query, like select field1, field2, field 3 from table where condition > 0. That's it. Takes less than a second.
Created a variable (evaluated as expression) for the Oracle query that uses the results set from the above in the WHERE clause.
Created a ForEachLoop Container that takes the results (from #1 above) for each row in the recordset and runs it through a Data Flow that uses the Oracle query (from #2 above) with Data access mode: SQL command from variable against an Oracle data source. Fast, simple query with only about 6 columns returned.
Data Conversion - obvious reasons - changing 3 columns from Oracle data types to SQL Server data types.
OLE DB Destination to insert to SQL Server using Fast Load to staging table.
It works perfectly! Hooray! Bad news - it is very, very slow. When I say slow, I mean it process 3000 records per hour. Holy moly - so freaking slow.
Question: am I missing a way to speed it up? It seems like the ForEachLoop Container is the bottleneck. Growl.
Important Points:
- I have NO write access in Oracle environment, so don't even suggest a potential solution that requires it. Not a possibility. At all.
Oracle sources do not allow for direct parameter definition. So no SELECT FIELD FROM TABLE WHERE ?. Don't suggest it - doesn't work.
Ideas
- Should I find a way to break down the results of the Execute SQL task and send them through several ForEachLoop Containers for faster processing?
Is there another design that is more appropriate?
Is there a script I can use that is faster?
Would it be faster to create a temporary table in memory and populate it - then use the results to bulk insert to SQL Server? Does this work when using an Oracle data source?
ANY OTHER IDEAS?
I'm attempting to recover the data from a specific table that exists in a system table dump I performed earlier. I would like to append the rows existing in the dump to any rows that may exist in the active table. The problem is, it's likely that the name of the table in the dump is not the same as what exists in the database currently (They're dynamically created with a prefix of ARC_TREND_). In addition, I don't know the name of the table as it exists in the dump, I was hoping to use SQL Developer to analyze the dump file as I can recognize the correct table by it's columns and it's existing rows.
While i'm going on blind faith that SQL Developer can work with my dump file, when attempting to open it, i'm getting a Java Heap OutOfMemory exception raised. I've adjusted the maximum heap size from 640m to 1024m in both sqldeveloper.bat and in sqldeveloper.conf, but to no avail.
Can someone recommend a course of action for me to take to recover the data from a table which exists in a exp created dump file? A graphical tool would be nice, but I'm no stranger to the command line. I need to analyze the tables that exist in the dump in order to pick the correct one out. Then I assume I can use imp TABLE= to bring it back into the active instance. It likely won't match the existing table name, so I will use SQL Developer to copy the rows from the imported table to the table where I need them to be.
The dump was taken from a Linux server running 10g, and will be imported to (the same server & database instance, upgraded) an 11g instance of the same database.
Thanks
Since you're referring to imp rather than impdp, I assume this wasn't exported with data pump. Either way, I doubt you'll get anything useful through SQL Developer.
Fortunately most of what you're trying to do is quite easy from the command line; just run imp with the INDEXFILE parameter, which will give you a text file containing all the table (commented out with REM) and index creation commands. From that you should be able to spot the table from its column names.
You can't really see any row data though, so if there's more than one possible match you might need to import several tables and inspect the data in them in the database to see which one you really want.
visual studion 2008
oracle db 11.1.0.7
oracle client for .NET
I have a relatively simple query, that selects the rows from across multiple tables (up to 4) using joins. OracleDataAdapter returns no rows for the only dataset's table, but if I copy and paste that query in SQLDeveloper then I get the desired results.
I can get the data from other tables using the adapter with no problem, but it seems like it struggles with the bit longer selection query (string length is ~ 300 (not that much at all))
Connection string for the connection is 100% correct.
Any ideas? thank you...
Check that you using same oracle user to connect to database. Maybe FGAC hides data.
Check that there is no temporary tables in you query.
Solution by OP.
The problem was, that after I imported the data in the SQLDeveloper in one of the involved tables, this change hasn't been committed automatically as I've falsely presumed... I've figured this out after I edited some data in the same table within the SQLDeveloper, and it has failed with the message that the edit operation on uncommitted action is now allowed. The headache I had was in SQLDeveloper, not the DataAdapter.