Oracle SQL Internals Handbook phần 8 potx

... more subtle bitmap join index. 124 Oracle SQL Internals Handbook Embedding SQL in Java & PL /SQL CHAPTER 13 Java vs. PL /SQL: Where Do I Put the SQL? Note: The Source Code file that ... incomprehensibility can be addressed by running script otrcsyn .sql in directory $ORACLE_ HOME/otrace/demo. 1 38 Oracle SQL Internals Handbook Figure 7: A recur...

Ngày tải lên: 08/08/2014, 20:21

... Oracle SQL Internals Handbook References Oracle 9i Release 2 Datawarehousing Guide, Chapter 17. Oracle 9i Release 2 Supplied Types and PL /SQL packages, Chapter 90 (DBMS_xplan). $ORACLE_ HOME/rdbms/admin ... state. This is to illustrate the fact that Oracle can actually recognize a "snowflake" schema. (Refer to figure 3.) 1 08 Oracle SQL Internals...

Ngày tải lên: 08/08/2014, 20:21

... table. In Oracle 9i we use table function instead: 2 Oracle SQL Internals Handbook Environment 1 48 The Tests 1 48 Java: 149 PL /SQL: 149 Multiple Statements 149 Java: 149 PL /SQL: ... Hoff Printing History: August, 2003 for First Edition Oracle, Oracle7 , Oracle8 , Oracle8 i and Oracle9 i are trademarks of Oracle Corporation. Many of the designa...

Ngày tải lên: 08/08/2014, 20:21

... 150 261 38 14.55 175 85 19 22.35 12 710399 344762 48. 53 28 2661 1469 55.2 107 62762 36 487 58. 13 236 510 339 66.47 205 37379 24 981 66 .83 6 129022 91359 70 .8 2 28 71 65 91.54 ... filter_predicates. Our parsing technique allows 8 Oracle SQL Internals Handbook Oracle SQL Optimizer Plan Stability CHAPTER 3 Plan Stability in Oracle 8i/9i Find...

Ngày tải lên: 08/08/2014, 20:21

... decision. 34 Oracle SQL Internals Handbook SQL, reduce the overheads, and allow you greater flexibility in testing, manipulating and installing stored outlines. 30 Oracle SQL Internals Handbook ... Plan Stability 38 Oracle SQL Internals Handbook This is a relatively recent feature of Oracle and sets out to ensure that the same plan is always used for a...

Ngày tải lên: 08/08/2014, 20:21

... a performance improvement factor is typically associated 48 Oracle SQL Internals Handbook Trees in SQL CHAPTER 5 Trees in SQL: Nested Sets and Materialized Path Relational databases ... from num2/den2, then the navigation converges to the root, and level(num1/den1)- 58 Oracle SQL Internals Handbook with index range scan in a similar, very selective, data v...

Ngày tải lên: 08/08/2014, 20:21

... of SQL tuning, and they don't require a through understanding of the internals of Oracle SQL. Let's begin with an overview of the Oracle SQL optimizers. 74 Oracle SQL Internals Handbook ... locked by default in Oracle 9) and list the available tables, you will find that Oracle 9 has one more table than Oracle 8. The tables are: 76 Oracle SQL Int...

Ngày tải lên: 08/08/2014, 20:21

... cardinality." 96 Oracle SQL Internals Handbook References Oracle 9i Release 2: Database Performance Tuning Guide and Reference Chapter 7. Oracle 9I Release 2: Supplied PL /SQL Packages and ... Even though Oracle is using the stored outline, the information in the table is sufficient to tell it that it is applying the plan to the wrong object. 84 Oracle SQL...

Ngày tải lên: 08/08/2014, 20:21

... specify parameters in the PreparedStatement SQL string, but not in a Statement SQL string. Single statement: 1 48 Oracle SQL Internals Handbook SQL with Keyword Searches CHAPTER 15 Keyword ... CONNECTION (DSL) JAVA ORACLE PACKAGE Single statement 286 113 Multiple statements 1662 506 TRUNCATE 217 332 152 Oracle SQL Internals Handbook Matrix Transp...

Ngày tải lên: 08/08/2014, 20:21

... user_outline_hints 24, 78, 81 , 83 , 84 user_outlines 24 user_source 20 V v$event_name 134 v$session_wait 132 v $sql_ plan 65, 70, 116 v $sql_ plan_statistics 70 v $sql_ plan_statistics_all . 70 v$sqlarea ... identification documents in a 170 Oracle SQL Internals Handbook Index H A hash_value 78 access_predicates 8 hash_value2 78 and_equal 23, 26, 101 aux_s...

Ngày tải lên: 08/08/2014, 20:21