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SQL: A Beginner s Guide
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5: Creating SQL Views In this chapter, you ll learn how to add views to your SQL database. You ll also learn how to create updateable views and how to drop views from the database. 6: Managing Database Security In this chapter, you ll be introduced to the SQL security model and learn how authorization identifiers are defined within the context of a session. You ll then learn how to create and delete roles, grant and revoke privileges, and grant and revoke roles.
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Part II: Data Access and Modification
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Part II explains how to access and modify data in an SQL database. You ll also learn how to use predicates, functions, and value expressions to manage that data. In addition, Part II describes how to join tables and use subqueries to access data in multiple tables. 7: Querying SQL Data This chapter describes the basic components of the SELECT statement and how the statement is used to retrieve data from an SQL database. You ll learn how to define each clause that can be included in the SELECT statement and how those clauses are processed when querying a database. 8: Modifying SQL Data In this chapter, you ll learn how to modify data in an SQL database. Specifically, you ll learn how to insert data, update data, and delete data. The chapter reviews each component of the SQL statements that allow you to perform these data modifications. 9: Using Predicates In this chapter, you ll learn how to use predicates to compare SQL data, return null values, return similar values, reference additional sources of data, and quantify comparison predicates. The chapter describes the various types of predicates and shows you how they re used to retrieve specific data from an SQL database. 10: Working with Functions and Value Expressions This chapter explains how to use various types of functions and value expressions in your SQL statements. You ll learn how to use set functions, value functions, value expressions, and special values in various clauses within an SQL statement. 11: Accessing Multiple Tables This chapter describes how to join tables in order to retrieve data from those tables. You will learn how to perform basic join operations, join tables with shared column names, use the condition join, and perform union operations. 12: Using Subqueries to Access and Modify Data In this chapter, you ll learn how to create subqueries that return multiple rows and others that return only one value. You ll also learn how to use correlated subqueries and nested subqueries. In addition, you ll learn how to use subqueries to modify data.
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Introduction
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Part III: Advanced Data Access
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Part III introduces you to advanced data-access techniques such as SQL-invoked routines, triggers, and cursors. You ll also learn how to manage transactions, how to access SQL data from your host program, and how to incorporate XML data into your database. 13: Creating SQL-Invoked Routines This chapter describes SQL-invoked procedures and functions and how you can create them in your SQL database. You ll learn how to define input parameters, add local variables to your routine, work with control statements, and use output parameters. 14: Creating SQL Triggers This chapter introduces you to SQL triggers and explains how to create insert, update, and delete triggers in your SQL database. You ll learn how triggers are automatically invoked and what types of actions they can take. 15: Using SQL Cursors In this chapter, you ll learn how SQL cursors are used to retrieve one row of data at a time from a result set. The chapter explains how to declare a cursor, open and close a cursor, and retrieve data from a cursor. You ll also learn how to use positioned UPDATE and DELETE statements after you fetch a row through a cursor. 16: Managing SQL Transactions In this chapter, you ll learn how transactions are used to ensure the integrity of your SQL data. The chapter describes how to set transaction properties, start a transaction, set constraint deferability, create savepoints in a transaction, and terminate a transaction. 17: Accessing SQL Data from Your Host Program This chapter describes the four methods supported by the SQL standard for accessing an SQL database. You ll learn how to invoke SQL directly from a client application, embed SQL statements in a program, create SQL client modules, and use an SQL call-level interface to access data. 18: Working with XML Data This chapter describes how XML data can be incorporated into an SQL database. You ll learn the basics of XML, how to use the XML data type to store XML in table column values, how to write SQL/XML functions that can be used to return data from the database formatted as XML, and the SQL/XML mapping rules that describe how SQL values are translated to XML values and vice versa.
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