Oracle embedded SQLite MAF - ability

Hi all

I would like to know if there is no data limit for the SQLite data base integrated in Oracle MAF - how much data can be stored in the embedded SQLite DB?

Best regards

Deepak

Hello.

The theoretical limits of SQLite are described here:

https://www.SQLite.org/limits.html

This page mentions this subject the maximum number of rows in a table:

The theoretical maximum number of rows in a table is 264 (18446744073709551616 or about 1.8e + 19). This limit is inaccessible because the maximum size of 140 terabytes database will be reached first. A database of 140 terabytes may no more contain to about 1e + 13 lines and then only if he has no clue and each line contains very little data.

And on the maximum size of a database:

Every database consists of one or more 'pages '. On the breast of a single database, each page has the same size, but other data can have page sizes that are powers of two between 512 and 65536, inclusively. The maximum size of a database file is 2147483646 pages. In the page size maximum of 65536 bytes, this translates into a maximum size of database about 1.4e + 14 bytes (140 tera-bytes or 128 000 gibibytes, 128 tebibytes, or 140 000 gigabytes).

This particular upper limit is not tested because developers do not have access to the material capable of reaching this limit. However, the tests verify that SQLite behaves properly and healthily when a database reaches the maximum file size of the underlying filesystem (which is usually much lower than the theoretical maximum size of database) and when a database is unable to grow due to depletion of disk space.

In other words: the maximum size of a SQLite database is usually limited by the maximum file size allowed by the file system.

This means that you could probably create a SQLite database with billions of documents on your phone. But should you? Mobile storage is limited, and your application will coexist with many others. Honestly, if your design requires significant amounts of data on the device, you must rethink your architecture and aggregate the data on the server.

Best regards

Frédéric Desbiens

Senior Product Manager

Mobility and Cloud oracle

Twitter: @BlueberryCoder

blog: http://blogs.oracle.com/blueberry

Tags: Oracle Mobile

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