Perfect database tool for embedded software

I work a lot with SQLite as it is the primary medium of local storage in Android devices (and by extension, Android applications) which I work with on a daily basis, and SQLite is just perfect for the purpose it serves on these devices. It's lightweight so you don't have to worry most times about how much of the user's storage space your database is going to take up. There's not much difference between the standard SQL commands and those used in SQLite, and many have reported that SQLite is a good starting and training resource for SQL in general.

Pros

Doesn't need a separate server. Lightweight and portable. Integrates most of the commands, functions and syntax of other SQL software. Optimized for use on devices that need to store data locally. Large user base and community (support).

Cons

All operations are locked to a single process, so it's not suitable for large scale database operations (which is not what you should be doing locally on a device anyway).

Reliable and battle tested database engine

I had been using it for Windows, iOS, backend and Android for many purposes. The support for sqlite always straight forward. I would recommend sqlite for tasks which not use joins nor store procedures. Native security is quite weak without supporting encrypt particular table or column.

Pros

Lightweight relational database, works on many platforms and has gain support from popularity in community. The toolkit for developing is great and easy to understand the concept. Integration to mobile is a nicer experience compare to other db engine. The speed and datasize is good for mobile as well.

Cons

We need to define data structure first before actually implement features, any mismatch in database scheme must be resolved using migration. The locking architecture only allow a single process to write at a time - no high volume transaction - and it isn’t able to scale to hundreds of users nor store large amount of data.

Fast Embedded database

Pros

Compact Fast Easy to use Preinstalled in most platform

Cons

Do not support nosql features Do not support multi client

SQLite - compatability at it's best level

SQLite has become more and more popular among the users because of its easy installation and easy accessing . As it is compatible with most of the programming languages and its light weight it is more popular among mobile application developers

Pros

SQLite is a light weighted data base which could be embedded with any software. Due to the light weightage of the product the data base is more popular In mobile application development. With it’s light weight it is also fast. SQLite is almost 35% faster than any other file system. SQLite is easy to use and there is not special installation or configurations needed to be done in order to use the product. All user have to do is download the libraries and run them in the computer. It is compatible which is why the product can be used with many programming languages with out any issues. Users are given a chance to extend their data base in future by adding new tables or new columns to the existing tables which is a great help for the ongoing projects.

Cons

SQLite is not a multi-user platform where the users can handle concurrent writes. There for SQLite is not good for intensive applications with rapid data logging. If the system has concurrent transactions where lot of users keep accessing the same set of data simultaneously then SQLite is not a good choice for the project. SQLite data bases are restricted to maximum of 2GB in most of the cases.

fast flexible database with robust features

SQLite works great for our specific use case as we prefer performance over HA / concurrency.

Pros

Extremely portable and fast ACID store. SQLite is very battle tested and highly performant. There are many bindings for various programming languages which makes it easy to get started with. If you couple SQLite with fast SSD, the performance is incredible (since it's just a file). Backup and restore is super easy and fast.

Cons

SQLite is for a very specific use case and there are no distribution properties or guarantees. Designed to be very simple so not a lot of tuning for SQLite. If you want high availability and concurrency, you may want to look at a different solution.