Download Expert Oracle JDBC Programming: High Performance by R.M. Menon PDF

By R.M. Menon

This hugely expected booklet tackles functionality concerns in JDBC purposes head-on, that will help you develop into a professional your self! The booklet info concisely and obviously, the correct facets of Oracle's structure that without delay effect the functionality and effectiveness of your JDBC program. writer R.M. Menon presents finished insurance of the JDBC API, with an in-depth evaluate of Oracle 10g-specific gains (the ebook additionally covers Oracle 9i.) Menon covers simple and complex JDBC (standard and Oracle extensions), functionality information with aiding benchmarks, connection pooling, assertion caching, chosen PL/SQL ideas, Oracle gadgets and collections, in addition to different subject matters.

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Extra info for Expert Oracle JDBC Programming: High Performance Applications with Oracle 10g

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Sql script will create and populate five tables for you. When the script is complete, it exits SQL*Plus automatically, so don’t be surprised when SQL*Plus disappears after running the script. sql. sql. Setting Up the BENCHMARK/BENCHMARK Schema Some of the code examples in this book have a user called BENCHMARK with the password BENCHMARK. sql in the directory code\mysqlscripts. com. The content of the script follows. dba_segments to benchmark; -- for block dump select on v_$process to benchmark Performance Tools We’ll also make use of other performance tools throughout the book.

CHAPTER 1 ■ PERFORMANCE TOOLKIT benchmark@ORA10G> insert into t1 select mod(rownum, 2 ) from all_objects, all_users where rownum <= 20000; 20000 rows created. benchmark@ORA10G> select count(*) from t1 where x = 0; 10000 benchmark@ORA10G> select count(*) from t1 where x = 1; 10000 benchmark@ORA10G> commit; Commit complete. benchmark@ORA10G> create index t1_idx on t1(x); Index created. The CBO works on statistics gathered on a table’s data. gather_table_stats( 7 ownname => 'BENCHMARK', 8 tabname => 'T1', 9 cascade => true ); 10 end; 11 / PL/SQL procedure successfully completed.

I explain the workings of this program in comments interspersed throughout the code. However, since the program uses JDBC concepts that I will cover later in Chapter 6, you may want to revisit this section after having read that chapter. Connection; public class DbmsOutput { We declare the instance variables as shown in the following code. We use the CallableStatement JDBC class to invoke PL/SQL code in this class. We use three statements in this class. The first statement enables dbms_output, which is equivalent to set serveroutput on in SQL*Plus.

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