Oracle SQL Internals Handbook phần 1 ppt

... In Oracle 9i we use table function instead: 2 Oracle SQL Internals Handbook Environment 14 8 The Tests 14 8 Java: 14 9 PL /SQL: 14 9 Multiple Statements 14 9 Java: 14 9 PL /SQL: 15 0 ... 15 0 Java: 15 0 PL /SQL: 15 1 Benchmark Results 15 1 Single Statement Results 15 1 Multiple Statements Results 15 2 Truncate Results 15 2 Remote Result...

Ngày tải lên: 08/08/2014, 20:21

... 15 0 2 61 38 14 .55 17 5 85 19 22.35 12 710 399 344762 48.53 28 26 61 1469 55.2 10 7 62762 36487 58 .13 236 510 339 66.47 205 37379 249 81 66.83 6 12 9022 913 59 70.8 228 71 65 91. 54 ... 64 ((a =1 or b =1) and (y=3 or z =1) ) and c =1 and x=5 or z=3 and y>7 OR 4 14 a =1 or b =1 OR 21 31 y=3 or z =1 AND 2 49 ((a =1 or b =1) and (y=3 or z =1) ) and...

Ngày tải lên: 08/08/2014, 20:21

... 'SO_FIX','SYS_OUTLINE_02050 316 5427 311 ', 'SYS_OUTLINE_02050 316 5427 311 ','SO_FIX' ) where ol_name in ('SYS_OUTLINE_02050 316 5427 311 ','SO_FIX') ; ... decision. 34 Oracle SQL Internals Handbook SQL, reduce the overheads, and allow you greater flexibility in testing, manipulating and installing stored outlines...

Ngày tải lên: 08/08/2014, 20:21

... ('SCOTT', path_numer(&apos ;1. 1 .1& apos;),path_denom(&apos ;1. 1 .1& apos;)); insert into emps values ('ADAMS', path_numer(&apos ;1. 1 .1. 1'),path_denom(&apos ;1. 1 .1. 1')); insert into ... ('FORD', path_numer(&apos ;1. 1.2'),path_denom(&apos ;1. 1.2')); insert into emps values ('SMITH', path_numer(&apos ;1. 1.2 .1& ap...

Ngày tải lên: 08/08/2014, 20:21

... wanted Oracle to use the non-unique index T1_I1? Ideally we would like to tweak this stored outline so that the line reading 3 1 INDEX(T1 T1_PK) became 3 1 INDEX(T1 T1_I1) 80 Oracle SQL Internals ... like 'MIL%' 68 Oracle SQL Internals Handbook alter table t1 add constraint t1_pk primary key (id); create index t1_i1 on t1(n1); analyze table t1...

Ngày tải lên: 08/08/2014, 20:21

... 9.2.0 .1 OBJECT SIZE (MB) BUILD TIME (mi:ss) T1 845 16 :12 I1 (sex) 11 1: 39 I2 (eyes) 16 1: 43 I2 (hair) 37 2 :17 I4 (town) 40 2:25 I5 (age) 42 2:28 I6 (work) 45 2:42 T1 845 16 :12 Note ... cardinality." 96 Oracle SQL Internals Handbook References Oracle 9i Release 2: Database Performance Tuning Guide and Reference Chapter 7. Oracle 9I Release 2...

Ngày tải lên: 08/08/2014, 20:21

... extra columns handled. 11 2 Oracle SQL Internals Handbook References Oracle 9i Release 2 Datawarehousing Guide, Chapter 17 . Oracle 9i Release 2 Supplied Types and PL /SQL packages, Chapter ... Figure 1 shows us a simple example of the way in which several tables might be related in a query that Oracle would address through the bitmap star transformation. 12 0...

Ngày tải lên: 08/08/2014, 20:21

... more subtle bitmap join index. 12 4 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 ... as: V _19 2 216 243_F_5_E_9_9_0 The problem of incomprehensibility can be addressed by running script otrcsyn .sql in directory $ORACLE_ HOME/otrace/demo. 13 8 Oracle S...

Ngày tải lên: 08/08/2014, 20:21

... (DSL) JAVA ORACLE PACKAGE Single statement 286 11 3 Multiple statements 16 62 506 TRUNCATE 217 332 15 2 Oracle SQL Internals Handbook Matrix Transposition in Oracle SQL CHAPTER 1 4 Matrix ... in the PreparedStatement SQL string, but not in a Statement SQL string. Single statement: 14 8 Oracle SQL Internals Handbook SQL with Keyword Searches...

Ngày tải lên: 08/08/2014, 20:21

... 37, 99 sql_ text 22 sql_ trace 20, 26, 12 8, 13 2, 14 1 SQL_ trace 12 9, 13 0 star_transformation_ enabled 10 9, 11 8 statistics_table 41 sys.log$ 13 0 sys.log$sequence 13 0 T temp_disable 11 8 U ... 36, 41 oracle_ trace 13 3 dbms_xplan 11 7 oracle_ trace_collection_ name 13 5 depth-first convergence point 52, 56 oracle_ trace_collection_ path 13 5 F oracl...

Ngày tải lên: 08/08/2014, 20:21