bulk

The goal is this: I have a set of values to go into table A , and a set of values to go into table B . The values going into B reference values in A (via a foreign key), so after inserting the A values I need to know how to reference them when inserting the B values. I need this to be as fast as possible. I made the B values insert with a bulk copy from: def bulk_insert_copyfrom(cursor, table_name, field_names, values): if not values: return print "bulk copy from prepare..." str_vals = "\n".join("\t".join(adapt(val).getquoted() for val in cur_vals) for cur_vals in values) strf = StringIO(str

I have been referring to the following page: http://msdn.microsoft.com/en-us/library/ms178129.aspx I simply want to bulk import some data from a file that has Unicode characters. I have tried encoding the actual data file in UC-2, UTF-8, etc but nothing works. I have also modified the format file to use SQLNCHAR , but still it doesn't work and gives error: Bulk load data conversion error (truncation) for row 1, column 1 I think it has to do with this statement from the above link: For a format file to work with a Unicode character data file, all the input fields must be Unicode text strings

Is it possible to do bulk update/upsert (not insert) in MongoDB? If yes, please point me to any docs related to this? Thanks You can use the command line program mongoimport it should be in your MongoDB bin dir ... There are two options you'll want to look into to use upsert ... --upsert insert or update objects that already exist --upsertFields arg comma-separated fields for the query part of the upsert. You should make sure this is indexed More info here: http://www.mongodb.org/display/DOCS/Import+Export+Tools Or just do ... $ mongoimport --help unique mongo can execute .js file. you can

At the start of my program, I need to read data from a MS Access database (.mdb) into a drop down control. This is done so that whenever the user types in that control, the application can auto-complete. Anyway, the reading from database took forever so I thought I'd implement bulk row fetching. This is the code I have: CString sDsn; CString sField; sDsn.Format("ODBC;DRIVER={%s};DSN='';DBQ=%s",sDriver,sFile); TRY { // Open the database database.Open(NULL,false,false,sDsn); // Allocate the rowset CMultiRowset recset( &database ); // Build the SQL statement SqlString = "SELECT NAME " "FROM

Ember Data's DS.RESTAdapter includes a bulkCommit property. I can't find any documentation about what this does/means, other than some vague references to batch committing vs bulk committing. Initially I assumed it would mean I could only update a single record at a time, but I currently have it set to false , and I'm still able to update multiple records at the same time using: this.get('store').commit(); So what is the difference between setting bulkCommit to false and setting it to true ? In what situation would I use one instead of the other? The REST adapter supports bulk commits so that

My book class uses a many-to-many field to save its readers. If I want to remove a reader from some books, I can use a loop to go through all book objects to remove the reader. But it's too slow. Is it possible to do it in a bulk operation? class Book(models.Model): readers = models.ManyToManyField(User, related_name='books') #Remove reader 'foo' from book 1, 2, 3, 4, 5. However, it is slow. for book in Book.objects.filter(id__in=[1, 2, 3, 4, 5]) book.readers.remove(R) Yes. You can access the underlying M2M model using the through attribute , and then use that model to do a delete in one query

In Woocommerce backend (admin) , I have a function that allows the shop-manager to download all orders between two dates with a specific bunch of required data: function write_to_file($date_initial, $date_final) { global $attach_download_dir, $attach_download_file; // Opens/creates file $myfile = fopen($attach_download_dir . '/' . $attach_download_file, "w") or die("Unable to open file!"); // Populates first line fwrite($myfile, 'Date; Parent Order ID; Order ID' . PHP_EOL); // Retrieves orders data if ( isset($date_initial) && isset($date_final) ) $args = array( 'date_created' => $date_initial