SQL (Database Programming)
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Numar articol:187727368
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Preț:153,00 Lei
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Specificatii
2015 Edition. Perfect for end users, analysts, data scientists, and
app developers, this best-selling guide will get you up and running
with SQL, the language of databases. You'll find general concepts,
practical answers, and clear explanations of what the various SQL
statements can do. Hundreds of examples of varied difficulty
encourage you to experiment and explore. SQL code listings help you
see the elements and structure of the language. You can download
the sample database to follow along with the author's examples.
Covers Oracle, Microsoft SQL Server, IBM DB2, MySQL, PostgreSQL,
and Microsoft Access. Learn the core language for standard SQL, and
variations for the most widely used database systems. Organize your
database in terms of the relational model. Master tables, columns,
rows, and keys. Retrieve, sort, and format data. Filter the data
that you don't want to see. Convert and manipulate data with SQL's
built-in functions and operators. Use aggregate functions to
summarize data. Create complex SQL statements by using joins,
subqueries, constraints, conditional logic, and metadata. Create,
alter, and drop tables, indexes, and views. Insert, update, delete,
and merge data. Execute transactions to maintain the integrity of
your data. Avoid common pitfalls involving nulls. Troubleshoot and
optimize queries. Plenty of tips, tricks, and timesavers. Fully
indexed and cross-referenced. Contents Introduction 1. Running SQL
Programs 2. The Relational Model 3. SQL Basics 4. Retrieving Data
from a Table 5. Operators and Functions 6. Summarizing and Grouping
Data 7. Joins 8. Subqueries 9. Set Operations 10. Inserting,
Updating, and Deleting Rows 11. Creating, Altering, and Dropping
Tables 12. Indexes 13. Views 14. Transactions About the Author
Chris Fehily is a statistician and author based in San Francisco.
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