'Select distinct pname' diaporamas de présentation

From Relational Algebra to SQL

From Relational Algebra to SQL. W2013 CSCI 2141. Relational algebra, SQL, and the DBMS?. Optimized Relational algebra expression. Relational algebra expression. Query execution plan. Executable code. SQL. Code generator. parser. Query optimizer. DBMS.

959 views • 82 slides

OCL1 Oracle 8i: SQL & PL/SQL Session #4

500 views • 49 slides

Midterm summary

Midterm summary. Types of data on the web: unstructured, semi-structured, structured Scale and u ncertainty are key features Main goals are to model, search (query) and rank Unstructured : Text Semi-structured : XML, Web graph, Web Applications (TBD)

496 views • 35 slides

Midterm summary

Midterm summary. Types of data on the web: unstructured, semi-structured, structured Scale and u ncertainty are key features Main goals are to model, search (query) and rank Unstructured : Text Semi-structured : XML, Web graph, Web Applications (TBD)

356 views • 35 slides

Lecture 02: SQL

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Lecture 02: SQL

406 views • 33 slides