学习iBatis框架必备的参考资料。 Structured Query Language (SQL) has been around for a long time. It’s been over 35 years since Edgar F. Codd first suggested the idea that data could be normalized into sets of related tables. Since then, corporate IT has invested
Databases and database theory have been around for a long time. Early renditions of databases centered around a single database serving every purpose known to the information processing community—from transaction to batch processing to analytical pr
A Relational Model of Data for Large Shared Data Banks - Edgar Codd, 1970, CACM. Classical work of Edgar Codd, inventor of Relational database theory. Describes how relational model helps to divide large databases on shards, pieces of datasets.
