INTRODUCTION DATABASE MANAGEMENT SYSTEMS
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1 Based on set of slides provided by Silberschatz, Korth, Sudarshan, Content modified by Sarajane Marques Peres, Ph.D. INTRODUCTION DATABASE MANAGEMENT SYSTEMS
2 History of Database Systems 1950s and early 1960s:" Data processing using magnetic tapes for storage" Tapes provided only sequential access" Punched cards for input" Late 1960s and 1970s:" Hard disks allowed direct access to data" Network and hierarchical data models in widespread use" Ted Codd defines the relational data model" " Would win the ACM Turing Award for this work" IBM Research begins System R prototype" UC Berkeley begins Ingres prototype" High-performance (for the era) transaction processing"
3 History of Database Systems 1980s:" Research relational prototypes evolve into commercial systems" SQL becomes industrial standard" Parallel and distributed database systems" Object-oriented database systems" 1990s:" Large decision support and data-mining s" Large multi-terabyte data warehouses" Emergence of Web commerce" Early 2000s:" XML and XQuery standards" Automated database administration" Later 2000s:" Giant data storage systems" Google BigTable, Yahoo PNuts, Amazon, "
4 Users Database management system Database
5 Users Database management system Database
6 Users Dataflex SQL Server Firebird DB2 Database management system Oracle MySQL PostgreSQL Database
7 Users Dataflex SQL Server Firebird DB2 Database management system Oracle MySQL PostgreSQL Database
8 naive users (tellers, agents, web users) programmers sophisticated users (analysts) database administrators use write use use interfaces programs query administration compiler and linker DML queries DDL interpreter program object code DML compiler and organizer query evaluation engine query processor buffer file authorization and integrity transaction storage indices data dictionary disk storage data statistical data
9 naive users (tellers, agents, web users) programmers sophisticated users (analysts) database administrators use write use use interfaces programs query administration compiler and linker DML queries DDL interpreter program object code DML compiler and organizer query evaluation engine query processor buffer file authorization and integrity transaction storage indices data dictionary disk storage data statistical data
10 naive users (tellers, agents, web users) programmers sophisticated users (analysts) database administrators use write use use interfaces programs query administration compiler and linker DML queries DDL interpreter program object code DML compiler and organizer query evaluation engine query processor buffer file authorization and integrity transaction storage indices data dictionary disk storage data statistical data
11 naive users (tellers, agents, web users) programmers sophisticated users (analysts) database administrators use write use use interfaces programs query administration compiler and linker DML queries DDL interpreter program object code DML compiler and organizer query evaluation engine query processor buffer file authorization and integrity transaction storage indices data dictionary disk storage data statistical data
12 Database management system Efficiency Reliability Physical Data Independence MulS- user Safety High- level query language Massive Processing Persistent Data
13 Based on set of slides provided by Silberschatz, Korth, Sudarshan, Content modified by Sarajane Marques Peres, Ph.D. INTRODUCTION DATABASE MANAGEMENT SYSTEMS
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