Oracle SQL Internals Handbook phần 7 potx

... 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 ... Oracle SQL Internals Handbook still have the default value of FALSE. (Note: the star transformation is not the same as the star query that was introduc...

Ngày tải lên: 08/08/2014, 20:21

... 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. 138 Oracle SQL Internals Handbook Figure 7: A recurs...

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... alt="" UPDATE the Table 176 Use a VIEW 176 Index 178 viii Oracle SQL Internals Handbook About the Authors Donald K. Burleson is one of the world’s top Oracle Database experts with ... Embedding SQL in Java & PL /SQL 143 Java vs. PL /SQL: Where Do I Put the SQL? by Dave Moore 143 The Power of a Package 144 The Flexibility of Java 146 Performance 1 47...

Ngày tải lên: 08/08/2014, 20:21

... 150 261 38 14.55 175 85 19 22.35 12 71 0399 34 476 2 48.53 28 2661 1469 55.2 1 07 6 276 2 364 87 58.13 236 510 339 66. 47 205 373 79 24981 66.83 6 129022 91359 70 .8 228 71 65 91.54 The ... filter_predicates. Our parsing technique allows 8 Oracle SQL Internals Handbook Oracle SQL Optimizer Plan Stability CHAPTER 3 Plan Stability in Oracle 8i/9i...

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... 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 pa...

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... 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 ... the parent node. Here is the test of the method (in which 27/ 32 is the node 2.1.2, while 7/ 8 is 2.1): 56 Oracle SQL Internals Handbook select lpad(' ',3*depth)||...

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 ... Internals Handbook Oracle SQL Tuning Tips CHAPTER 7 SQL tuning Oracle SQL tuning is a phenomenally complex subject, and entire books have been devoted to...

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...

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... and Unnesting Consider the table EMPNO POS LET 73 69 1 S 73 69 2 M 73 69 3 I 73 69 4 T 73 69 5 H 74 99 1 A 74 99 2 L 74 99 3 L 74 99 4 E 74 99 5 N … … … that we call UNNESTED. Both tables ... emp)); EMPNO POS S - 73 69 1 S 73 69 2 M 73 69 3 I 73 69 4 T 73 69 5 H 74 99 1 A 74 99 2 L 74 99 3 L 74 99 4 E 74 99 5 N 75 21 1 W Looking at s...

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... 56 library_cache 17 buffer_pool_keep 101 O C ol$ 24, 77 ol$hints 24, 27, 42, 77 , 78 , 79 , 81 clustering_factor 85 cursor_sharing 18, 37, 42 ol$nodes 27 D ol$notes 77 open_cursors 13 ... 170 Oracle SQL Internals Handbook Index H A hash_value 78 access_predicates 8 hash_value2 78 and_equal 23, 26, 101 aux_stats$ 86 L B last_cr_buffer_gets 70 last_...

Ngày tải lên: 08/08/2014, 20:21