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The SQLite software free and it works great. +Most people use SQLite in their products and services without getting +any kind of license or support.
Free support for SQLite is available on the public +SQLite mailing list: +sqlite-users@mailinglists.sqlite.org. +The mailing list is monitored by a large +community of experts, including the core SQLite development team, +who are able to resolve just about +any problems with SQLite that you are likely to have.
You can browse the + +mailing list archives or + +sign-up as a mailing list member. +To send a question to the mailing list, it is recommended that you + +sign-up, but you can simply send an email message to +sqlite-users@mailinglists.sqlite.org and +your question will probably appear on the mailing list in about 24 hours. +(Questions from non-members are moderated, which is the reason for the +24-hour delay.) + +
If you do not want to discuss your product on an open forum, an +Annual Maintenance +Subscription or "AMS" might +serve your needs better. +An AMS entitles you to private email support directly from the developers of +SQLite. The level of support with an AMS is similar to the support one +gets from the public mail list except that an AMS includes a unilateral +promise of non-disclosure, so with an AMS you can discuss your issues +with the SQLite developers in private, without the whole world watching. +An AMS costs $1500 per year.
Users with more advanced support needs can opt for a +Technical Support +Agreement. +Technical support agreements are customized to the needs of each +individual client, but generally include direct telephone support +and priority handling of issues and bugs. Guaranteed response time +is available as an option to those to need it. The cost of +technical support varies according to customer needs but is generally +in the range of $8000 to $35000 per year.
If SQLite is "mission critical" to your company, then you may +want to becoming an +SQLite Consortium +Member. The SQLite +Consortium is a collaboration of companies who sponsor ongoing development +of SQLite in exchange for enterprise-level technical support, on-site +visits from the SQLite developers, unlimited access to all licensed +products, and strong guarantees that SQLite will remain in the public +domain, free and independent, and will not come under the control of +a competitor. The cost of consortium membership is $75000 per year.
The SQLite source code is in the +public domain, +and is free for use +by anyone and for any purpose. No license is required. However, some +users desire a license so that they can have warranty of title, or just +because their company lawyers say they need one. A +perpetual license +and warranty +of title for the core SQLite source code is available for this purpose.
The +SQLite Encryption +Extension (SEE), +the ZIPVFS Extension, +and the Compressed and +Encrypted ReadOnly Database (CEROD) extension are enhanced versions +of SQLite that handle encrypted +and/or compressed databases. SEE can read and write encrypted databases. +SEE encrypts all database content, including metadata, so that the database +file appears as white noise. ZIPVFS +compresses the database on-the-fly using application-supplied +compression and decompression functions. +CEROD reads a compressed database that is +also optionally encrypted. All of SEE, ZIPVFS, and CEROD are +supplied in source code form only; the licensee is responsible for +compiling the products for their chosen platform. It is not difficult +to compile any of these extension. All products come in the form of an +amalgamated source file +named "sqlite3.c". So compiling SEE, ZIPVFS, or CEROD into an application +is simply a matter of substituting the SEE, ZIPVFS, or CEROD-enabled sqlite3.c +source file in place of the public-domain sqlite3.c source file and recompiling. +Licenses for SEE, ZIPVFS, and CEROD are perpetual. +All three extension can read and write ordinary, +uncompressed and unencrypted database files.
The Test Harness #3 (TH3) is +a suite of test cases for SQLite that provide 100% branch test coverage +(and 100% modified condition/decision coverage) for the core SQLite in +an as-deployed configuration using only published and documented interfaces. +TH3 is designed for use with embedded devices, and is compatible with +DO-178B. Every release of the public-domain SQLite is tested using TH3, +and so all users benefit from the TH3 tests. But the TH3 tests are not +themselves public. Hardware or system manufactures who want to have +TH3 test run on their systems can negotiation a service agreement to have +the SQLite Developers run those tests.
Paid support options and products are provided by +Hipp, Wyrick & Company, Inc., (Hwaci), a +Georgia +corporation +with headquarters in + +Charlotte, North Carolina. +Hwaci has been in continuous operation +since 1992. Hwaci has an international team of +employees and associates representing the best available talent. +We are a 100% engineering company. There is +no sales staff. +Our goal is to provide outstanding service and honest advice +without spin or sales-talk.
Hwaci is a small company but it is +also closely held and debt-free and has low +fixed costs, which means that it is largely immune to buy-outs and +take-overs and market down-turns. Hwaci intends to +continue operating in its current form, and at roughly its current +size until approximately the year 2050. +We expect to be here when you need us, +even if that need is many years in the future.