Database Programming

MySQL Database C API proramming tutorial 
[Html] http://zetcode.com/tutorials/mysqlcapitutorial/ 

PostgreSQL Database libpq C API tutorial 
[HTML] http://www.postgresql.org/docs/8.3/static/libpq.html 

Berkley DB C API 
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Getting Started with Data Storage: 
[Pdf] http://www.oracle.com/technology/documentation/berkeley-db/db/gsg/C/BerkeleyDB-Core-C-GSG.pdf 
[Html] http://www.oracle.com/technology/documentation/berkeley-db/db/gsg/C/index.html 
Getting Started with Transaction Processing: 
[Pdf] http://www.oracle.com/technology/documentation/berkeley-db/db/gsg_txn/C/BerkeleyDB-Core-C-Txn.pdf 
[Html] Getting Started with Transaction Processing 
Getting Started with Replication: 
[Pdf] http://www.oracle.com/technology/documentation/berkeley-db/db/gsg_db_rep/C/Replication-C-GSG.pdf 
[Html] http://www.oracle.com/technology/documentation/berkeley-db/db/gsg_db_rep/C/index.html 
Referance Guide: 
[Html] http://www.oracle.com/technology/documentation/berkeley-db/db/ref/toc.html 
Programmatic API: 
[Html] http://www.oracle.com/technology/documentation/berkeley-db/db/api_c/frame.html 

Hamster DB 
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[Site] http://hamsterdb.com/index 
[PDF] http://hamsterdb.com/public/dl/tutorial.pdf 
[Examples] http://hamsterdb.com/documentation/samples 

Sqlite embedded database. 
[HTML] http://souptonuts.sourceforge.net/readme_sqlite_tutorial.html 
source: http://www.gtkforums.com/about988.html