Computer Science > Summary > ORACLE SQL TUTORIAL (All)
ORACLE SQL TUTORIAL
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Agenda Proprietary content. ©Great Learning. All Rights Reserved. Unauthorized use or distribution prohibited Nested Query 9 Operators as keywords Creation of Table 2 Miscellaneous topics 5 ... 6 Functions 7 Relational Model 4 Clauses 8 Introduction 1 Oracle setup and installation 3 SQL Commands 10 Database Objects and SP Managing refers to storing permanently and retrieving efficiently 1. How to store data(small volumes of facts) permanently and how to retrieve (get the stored facts) efficiently? 2. How to store database(large volumes of facts) permanently and how to retrieve(get the stored large volumes of facts) efficiently ? PROBLEMS associated in managing DATA or DATABASE in LEDGERS:- 1. Security challenges 2. Back up issues 3. Space issues 4. Human Resource issue 5. Costly 6. Inefficiency in retrieving facts etc. COMPUTERS came into existence in 1940s but it was very costly, so people did not think of using computers. But in late 1950s, Computer prices came low as compared to 1940s and people thought of using computers to manage facts and figures, But there were no means to do it. [Show More]
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