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Chapter 6

Chapter 6

Chapter 6. Structured Query Language (SQL). Sample Database for the following examples. Publishing company has three subsidiary publishers. Need to keep info about books, authors, editors, & publishers. Assume: an author may write more than one book a book may have more than one author

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1.33k views • 120 slides
Basic SQL

Basic SQL

CS157B. Lecture 9. Basic SQL.

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637 views • 55 slides
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??? ????????. SQL ?? ????????? ????????? ???? ???? ????????. ??? SQL ??. ?? SQL ?????? ?? SQL Server ?? ?? SQL Server 2000 ?????. ?? SQL ??????. 1. ?? ????? Query ???????? Manipulation ????? Definition ????? Control ?? 2. ??? (1) ?????? (2) ?????????

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Section 5 - Grouping Data

Section 5 - Grouping Data

Section 5 - Grouping Data. The GROUP BY clause allows the grouping of data Aggregate functions are most often used with the GROUP BY clause GROUP BY divides a table into sets, then Aggregate functions return summary values for those sets. GROUP BY Syntax.

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455 views • 34 slides
SQL Server 2000 ??? Stored Procedure

SQL Server 2000 ??? Stored Procedure

SQL Server 2000 ??? Stored Procedure. ??: ??? http://mssql.ce.ro. ? ?. ?? ? ?? ?? / Return ?? SQL ??? ????? ?? ???? ??? ??? ?? ??? ??? ?? ?? exec/ sp_executesql / sp_prepare / sp_execute ??? ???? ?? ??? ???. ?????? - ?? ?. ??? ??? ?? ??? SQL ?? ??? ?? ?? ?? SQL ?? ?? ??

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459 views • 30 slides
Subqueries and Exists

Subqueries and Exists

Subqueries and Exists. Subqueries. A subquery is a SELECT statement that is used to aid data selection by being nested within another SQL query Are often used with in IN predicate A subquery is a binary logical check, True or False. Differences Between Subquery and Join.

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336 views • 21 slides

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