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The SQLite GNU Autoconf script will automatically search for Tcl and build the Tcl extension if it finds it. The recommended way to build the TCL interface is to use one of the tarballs or precompiled bindings for the Tcl extension for either Linux and Windows available on the SQLite web site. A simple configure && make invocation should see the TCL extension compiled and installed in the default location, so TCL and TCL/Tk scripts can load the extension normally. You ll also find the requisite libraries in the

Partitioning is designed to facilitate the management of very large tables and indexes by implementing a divide and conquer logic basically breaking up a table or index into many smaller and more manageable pieces. It is an area where the DBA and developer must work together to maximize application availability and performance. This chapter covers both table and index partitioning. We look at partitioning using local indexes (common in data warehouses) and global indexes (common in OLTP systems).

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This chapter introduces the concept of and uses for parallel execution in Oracle. We ll start by looking at when parallel processing is useful and should be considered, as well as when it should not be considered. After gaining that understanding, we move on to the mechanics of parallel query, the feature most people associate with parallel execution. Next, we cover parallel DML (PDML), which allows us to perform modifications using parallel execution. We ll see how PDML is physically implemented and why that implementation leads to a series of restrictions regarding PDML. We then move on to parallel DDL. This, in my opinion, is where parallel execution really shines. Typically, DBAs have small maintenance windows in which to perform large operations. Parallel DDL gives DBAs the ability to fully exploit the machine resources they have available, permitting them to finish large, complex operations in a fraction of the time it would take to do them serially. The chapter closes on procedural parallelism, the means by which we can execute application code in parallel. We cover two techniques here. The first is parallel pipelined functions, or the ability of Oracle to execute stored functions in parallel dynamically. The second is do it yourself (DIY) parallelism, whereby we design the application to run concurrently.

This first half of this chapter focuses on SQL*Loader (SQLLDR) and covers the various ways in which we can use this tool to load and modify data in the database. Issues discussed include loading delimited data, updating existing rows and inserting new ones, unloading data, and calling SQLLDR from a stored procedure. Again, SQLLDR is a well-established and crucial tool, but it is the source of many questions

The Product field is the Row Labels area of your pivot table. You want to change the text in some of the Product subtotal labels to make them more descriptive, but when you type a new label, all the Product subtotal labels change to the same text. This example is based on the Labels.xlsx workbook.

package repositories of various distributions. For example, under Debian or Ubuntu, you can add the Tcl bindings as follows: fuzzy@linux $ sudo apt-get install libsqlite3-tcl As this chapter is being written, there is also talk of including SQLite by default in TCL version 8.6, which will make the process even easier!

with regard to its practical use. The second half of the chapter focuses on external tables, an alternative and highly efficient means by which to bulk load and unload data.

This chapter looks at the opportunities for encrypting data in the Oracle database. A discussion of manual do it yourself encryption using the built-in database package DBMS_CRYPTO is included, but not emphasized. Rather, a discussion on why you should probably not be using that package is included. The focus of this chapter is on the implementation details of Transparent Data Encryption (TDE) in the Oracle Database. This chapter focuses on how both column level and tablespace level encryption are achieved and what it means to you as a developer or DBA. Not every possible configuration possibility is described (that is what the Oracle documentation is for), but rather the practical implementation details and how they will affect you are laid out.

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