作者: C.J. Date

Temporal database systems are systems that provide special support for storing, querying, and updating historical and/or future data. Current DBMSs provide essentially no temporal features at all, bu …

Time and Relational Theory provides an in-depth description of temporal database systems, which provide special facilities for storing, querying, and updating historical and future data. Traditionall …

This book sheds light on the principles behind the relational model, which is fundamental to all database-backed applications–and, consequently, most of the work that goes on in the computing world …

Avoid misunderstandings that can affect the design, programming, and use of database systems. Whether you’re using Oracle, DB2, SQL Server, My SQL, or Postgre SQL, The Relational Database Dictionary …

What makes this book different from others on database design? Many resources on design practice do little to explain the underlying theory, and books on design theory are aimed primarily at theoreti …

What makes this book different from others on database design? Many resources on design practice do little to explain the underlying theory, and books on design theory are aimed primarily at theoreti …

This book sheds light on the principles behind the relational model, which is fundamental to all database-backed applications–and, consequently, most of the work that goes on in the computing world …

Views are virtual tables. That means they should be updatable, just as "real" or base tables are. In fact, view updatability isnt just desirable, its crucial, for practical reasons as well …

Views are virtual tables. That means they should be updatable, just as "real" or base tables are. In fact, view updatability isnt just desirable, its crucial, for practical reasons as well …

All of todays mainstream database products support the SQL language, and relational theory is what SQL is supposed to be based on. But are those products truly relational? Sadly, the answer is no. Th …

Avoid misunderstandings that can affect the design, programming, and use of database systems. Whether you’re using Oracle, DB2, SQL Server, My SQL, or Postgre SQL, The Relational Database Dictionary …

SQL is full of difficulties and traps for the unwary. You can avoid them if you understand relational theory, but only if you know how to put that theory into practice. In this book, Chris Date expla …

SQL is full of difficulties and traps for the unwary. You can avoid them if you understand relational theory, but only if you know how to put that theory into practice. In this book, Chris Date expla …

No matter what DBMS you are using Oracle, DB2, SQL Server, My SQL, Postgre SQLmisunderstandings can always arise over the precise meanings of terms, misunderstandings that can have a serious effect o …

No matter what DBMS you are using Oracle, DB2, SQL Server, My SQL, Postgre SQLmisunderstandings can always arise over the precise meanings of terms, misunderstandings that can have a serious effect o …

Type inheritance is that phenomenon according to which we can say, for example, that every square is also a rectangle, and so properties that apply to rectangles in general apply to squares in partic …

Type inheritance is that phenomenon according to which we can say, for example, that every square is also a rectangle, and so properties that apply to rectangles in general apply to squares in partic …