Questions about Querying Data from an RDBMS

with Reference to this below URL,
forum.appian.com/.../Querying_Data_From_an_RDBMS.html
There are some doubts out of my interest.
Lets consider a scenario, like we have a view which is having 100k of data and it is trying to fetch the data with pagination with 25 records per page. we are using Query rules and we are in version 7.4
Knowing that pagination is given it will load only 25 records per page but our doubt is since pagination is used in the expression rule of displaying the data in grid,
1.Is Query Rule fetching all the records and showing 25 per page or is it hitting the db for the next 25 records,
2.Is this the same way how Query Entity works or is it different.
3.Knowing that the maximum limit of data for Query rule is 1 MB, is it the same for Query Entity or does this differ.
4.How does the performance of Query rule and Query Entity differ if the working of both are same.
Please Sugges...

OriginalPostID-196692

OriginalPostID-196692

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  • @philib : I am not using SAIL form. I am using Form Designer and PageGrid . Now my problem is to fetch all the records from DB in small batches(not at once), able to retrieve only first batch size. How to retrieve all records in small batches. The below query retrieves only 100 records. But records after 101 are not retrieved. I want to retrieve all records i.e., 1-100,101-200,201-300 so on .. So there will be multiple hits to DB in this case. How to implement this in Form Designer. Please help me on this.
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  • @philib : I am not using SAIL form. I am using Form Designer and PageGrid . Now my problem is to fetch all the records from DB in small batches(not at once), able to retrieve only first batch size. How to retrieve all records in small batches. The below query retrieves only 100 records. But records after 101 are not retrieved. I want to retrieve all records i.e., 1-100,101-200,201-300 so on .. So there will be multiple hits to DB in this case. How to implement this in Form Designer. Please help me on this.
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