I have firebase real-time database with a field of employee having more than 2000 entries having details of all employees. In my react-app while fetching the list of employees , I have to first fetch the whole employee field data to display the entries causing a lot of loading time.
Is there any way so that i could be able to query for only 10 entries of employee for the 1st page and while clicking for next page it again fetches the next 10 entries, Because doing so while reduce the time for loading the screens ...
Yes surely firebase seems to give the feature of filtering list.
You can use limitToFirst() and startAt(), to implement pagination and get limited data.
For more information you can go with docs https://firebase.google.com/docs/database/web/lists-of-data#filtering_data
Related
community. I am new in ODK forms. I just want to ask how can I load JSON data or any other way rather than JSON, in my external_choices at run time dynamically.
Example: I want to load data based on district_id. In my one district, there are 2000 villages, and I have 40 districts in my state. Feeding 40*2000=80000 villages in external_choices and loading it at run time is very ram consuming. So in my case, I'll just want to pass the district_id in my query parameter and villages belonging to that district will be fetched from JSON and loaded into external_choices. Can anybody help how I can achieve it?
I have a table of 300 records and I have developed a adf page where 300 records are shown in page. Each page consist of only 25 records.
My requirement is to print only record which is available in page, instead of all the records in table.
The af:exportCollectionActionListener only allow to either download all or selected lines. You can try having a button selecting allRowInRange (the 25 displayed) and then triggering the af:exportCollectionActionListener.
You can use jasper report to export it as PDF or excel from ADF app, you can use query parameter in report level to print data that are being displayed on page
We are trying to migrate our existing product and order data to woocommerce. We will also periodically sync this additional data.
Due to performance concerns we are unable to use the Woocommerce API for this and have opted instead for manual database entries.
Everything appears to be working except the values of the order in the Woocommerce reporting, which do not seem to be picked up. We can see the amount of products sold from the orders without issue.
To set the order total we are adding a row into the wp_postmeta table with the key '_order_total'. Is there any other field that is required for Woocommerce to see the total?
Am I missing something else somewhere?
WooCommerce > System Status > Tools > Clear transients
Also looks like _payment_method and _payment_method_title need to be populated.
For reference I'm using _order_version = 2.6.4
There's a site called NPI registry lookup which will show the information about the doctor you're searching for. Here's the URL https://npiregistry.cms.hhs.gov/registry/search-results-table?number=1023070703. This will list the information in table form for the doctor whose NPI number is 1023070703, for example. What I want to do is build an angular site that will allow users to enter the NPI number, which I'd get the data using $http.get(url). I received the data but it's HTML instead of just the values. How can I parse the HTML table so that I can only pick the data I need? Or is there another better way of fetching the data?
It may sound silly to create another site when there already exists one, but it's for internal purpose only which we need to save a list of doctors that are not yet in our list.
Please read the sites API which is on top right.
For interactive demo:
https://npiregistry.cms.hhs.gov/api/demo
1023070703 becoming something like:
https://npiregistry.cms.hhs.gov/api/?number=1023070703
I currently have a client-server application. The client needs to be able to generate reports. These reports can have millions of records. What is the best way to get the data to the client? Sending all million records at once is not very efficient. Let's say I just want to display 20 at a time and page through all the results. Would I have the server do the query each time a user clicks on next page or should I have the server get the entire result set and then sent parts of it to the client?
Use a cursor - it is perfect for these purposes.
Note - a report with million rows is not well designed report. Nobady can process it. But this is question for analytic.
http://www.commandprompt.com/ppbook/x15040
I used Limit in sql query to set a range of records fetched. but the query has to originate from client and the query must pass the range.
It depends on scripting, if you use Dotnet+npgsql connector
I would generate a Pagenumber in a combobox on form
Then multiply the pagenumber with Rows*(pagenum-1) (20*1 for page2) to get starting rownum
Pass it in form of sql to database
Retrieve rows and display in datagridview
Although, i might just add, searching through a million record Page_by_page is not wisdom. i hope there are some filters to narrow down search to a few pages. Because research show that views beyond page10 drop exponentially.