Oracle SQL Internals Handbook phần 9 pdf

... 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 7 499 1 A 7 499 2 L 7 499 3 L 7 499 4 E 7 499 5 N … … … that we call UNNESTED. Both tables ... max(length(ename)) from emp)); EMPNO POS S - 73 69 1 S 73 69 2 M 73 69 3 I 73 69 4 T 73 69 5 H 7 499 1 A 7 499 2 L 7 499 3 L 7 499 4 E 7 499 5 N 7521 1...

Ngày tải lên: 08/08/2014, 20:21

... re-parsing statements that have aged off. column name format a25 column bytes format 99 9 ,99 9 ,99 9 ,99 9 select name,to_number(value) bytes from v$parameter where name ='shared_pool_size' ... 38 14.55 175 85 19 22.35 12 710 399 344762 48.53 28 2661 14 69 55.2 107 62762 36487 58.13 236 510 3 39 66.47 205 373 79 2 498 1 66.83 6 1 290 22 91 3 59 70.8...

Ngày tải lên: 08/08/2014, 20:21

... table. In Oracle 9i we use table function instead: 2 Oracle SQL Internals Handbook Environment 148 The Tests 148 Java: 1 49 PL /SQL: 1 49 Multiple Statements 1 49 Java: 1 49 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 design...

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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 ... On Oracle 9i, you should find that this account is locked. 28 Oracle SQL Internals Handbook placement of the parentheses in the WHERE clause may tell us someth...

Ngày tải lên: 08/08/2014, 20:21

... test (where 39/ 32 is the node 1.3.1): select x_numer( 39, 32)||'/'||x_denom( 39, 32), y_numer( 39, 32)||'/'||y_denom( 39, 32) from dual 5/8 19/ 32 select 5/8+ 19/ 32, 39/ 32 from ... descendant of [plft, prgt] if: plft <= clft and crgt >= prgt Nested Intervals 49 99 999 9 would be returned (readers are advised to find a less clumsy solution)....

Ngày tải lên: 08/08/2014, 20:21

... comprise 90 percent 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 ... SQL Internals Handbook Oracle SQL Tuning Tips CHAPTER 7 SQL tuning Oracle SQL tuning is a phenomenally complex subject, and entire books have been devote...

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 ... clarity. 90 Oracle SQL Internals Handbook Individually an index (B*tree or bitmap) on any one of these facts would be completely useless if we translated this data...

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 ... 90 (DBMS_xplan). $ORACLE_ HOME/rdbms/admin  utlxplan .sql  utlxpls .sql  utlxplp .sql  dbmsutil .sql References 1 19 Figure 9: Temp Table...

Ngày tải lên: 08/08/2014, 20:21

... as: V_ 192 216243_F_5_E _9_ 9_0 The problem of incomprehensibility can be addressed by running script otrcsyn .sql in directory $ORACLE_ HOME/otrace/demo. 138 Oracle SQL Internals Handbook ... 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? Not...

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... session_cached_cursors . 13, 15 sort_area_size 37, 99 sql_ text 22 sql_ trace 20, 26, 128, 132, 141 SQL_ trace 1 29, 130 star_transformation_ enabled 1 09, 118 statistics_table 41 sys.log$ 130 sys.log$sequence ... Probably not. As an exercise, write some trigger code for this problem. 174 Oracle SQL Internals Handbook Using SQL with Web Databases CHAPTER 16...

Ngày tải lên: 08/08/2014, 20:21