oracle+plsql+tutorial+for+beginners+with+examples

Ngày tải lên: 17/10/2014, 14:02

... the following URL: 1 www.oracledbaexpert.com /oracle/ OracleSQLJumpstartWithExamples/index.html You will find scripts for other books I have written plus other informa- tion as well, and of ... Chapter 2. New Features of Oracle SQL This chapter covers new Oracle SQL and PL/SQL features for both Oracle Database 10 g and Oracle Database 9 i . Chapter 3. Oracle Database Architecture ... Oracle SQL Jumpstart with Examples ! The title of this book was originally Oracle SQL Reference, but during the writing process, we set our hearts on the new title Oracle SQL Jumpstart with...

Ngày tải lên: 24/12/2013, 12:17

... features available for SQL in both Oracle Database 10g and Oracle Database 9i. 1.8 Endnotes 1. www.oracledbaexpert.com /oracle/ secure/Normalization.doc 2. Oracle Performance Tuning for 9i and 10g ... possible in Oracle SQL with respect to SQL coding can now be coded and executed from within PL/SQL. PL/SQL is now fully syntactically equivalent with Oracle SQL. In other words, all Oracle SQL ... simplified version. I have twisted Normal Forms deliberately. 4. http://www.oracledbaexpert.com /oracle/ secure/ Denormalization.doc 5. http://www.oracledbaexpert.com /oracle/ secure/ TheVeryBasicsOfDataWarehouseDesign.doc Figure...

Ngày tải lên: 24/12/2013, 12:17

... is enough about the WHERE clause for now. The next chapter deals with sorting query results and the ORDER BY clause. 5.5 Endnotes 1. Oracle Performance Tuning for 9i and 10g (ISBN: 1-55558-305-9) Chap5.fm ... of specific indexes both for reading data and for applying inherent index sorts (pre- sorted). Therefore, WHERE clause expression orders can be extremely important to performance, particularly ... simple examples will suffice with respect to the SELECT state- ment. For example, the following query finds the ROWID (logical row pointer) and ROWNUM (returned row number in current query) for each row...

Ngày tải lên: 24/12/2013, 12:17

... FROM ARTIST;  NUMF[ORMAT] { format } . Apply a format to all output numbers. For instance, SET NUMFORMAT '999,999,999,990.00' displays all numbers with two decimal places, even ... browser. An Oracle installation comes with a miniature Web server, called HTTP Server, and is configured automatically by Oracle Installer. The HTTP Server that is provided as part of Oracle is ... settings for SQL*Plus formatting?  How are variables used in SQL*Plus?  How are scripts used in SQL*Plus?  How are reports formatted in SQL*Plus?  How is iSQL*Plus used for reporting? This...

Ngày tải lên: 24/12/2013, 12:17

... Institute (ANSI) format JOIN clause and the Oracle proprietary format for joining tables are used in all examples where possible. The JOIN clause is the ANSI equivalent of the Oracle proprietary ... familiar with its use. As a side issue, Oracle Certification exams may test both formats.  Both formats are useful for explaining how joins behave and how to select the most appropriate format. ... syntax. We examine both formats for the following reasons:  The Oracle proprietary format has not as yet been deprecated in favor of the ANSI JOIN clause; therefore, it is important that...

Ngày tải lên: 24/12/2013, 12:17

... only, as shown in Figure 11.21. COLUMN CONTINENT FORMAT A16 COLUMN COUNTRY FORMAT A16 COLUMN YEAR FORMAT 9999 COLUMN SALES FORMAT 990 COLUMN REVENUE FORMAT $999,999.00 SELECT * FROM SALESSUM WHERE ... Cartesian product. COLUMN CD FORMAT A24 HEADING "CD" COLUMN TRACK FORMAT 90 HEADING "Track" COLUMN SONG FORMAT A40 HEADING "Song" COLUMN NAME FORMAT A32 HEADING "Artist" SELECT ... following query forces a cumulative sum on the SALES grouped result column, resulting in a total sales number for each continent plus a cumulative sales number for all rows returned so far, for every...

Ngày tải lên: 24/12/2013, 12:17

... flashback, and parallel queries. The next chapter examines Oracle Expressions, new to Oracle Database 10g. 13.5 Endnotes 1. Oracle Performance Tuning for 9i and 10g (ISBN: 1-55558-305-9) Chap13.fm Page ... . A compound expression is multiple expressions put together with operators. For example, 10 + 20 or P(1 + r) n , a formula for compound interest calculations.  Lists . A list of ... the versions flashback query pseudocolumns. COLUMN ID FORMAT 990 COLUMN CONTINENT A16 COLUMN STIME FORMAT A5 COLUMN ETIME FORMAT A5 COLUMN DML FORMAT A6 SELECT CONTINENT_ID "ID", NAME...

Ngày tải lên: 24/12/2013, 12:17

... the XMLType datatype with respect to Oracle SQL. The XMLType datatype is merely a storage medium and has little to do with actually “doing things” to XML structures, with Oracle SQL commands. ... central database that tracks contact information for clients. Your salespeople have handheld palmtop units that they use to record con- tact information for new and existing clients. The palmtop’s ... not always strictly true if CASCADE DELETE is used with constraints. See Chapter 1 for details on Referential Integrity and Chapter 20 for information on constraints. 15.5.3 Deleting All Rows You...

Ngày tải lên: 24/12/2013, 12:17

... called Oracle Par- titioning. Oracle Partitioning working in concert with parallel processing and separate disk spindles or RAID arrays can provide fairly substantial per- formance improvements. Oracle ... appear in row form, such as in this join. Note: Two-dimensional data is useful for platform-independent transfer between multiple databases. However, there are other, faster methods for achieving ... use of XML directly from within Oracle SQL. XML is vastly more complex and detailed than pre- sented in this chapter, both with respect to XML itself and to that of Oracle software. This chapter...

Ngày tải lên: 24/12/2013, 12:17

... with Joins Modifying data through a view that joins two tables is tricky. In addition to all the rules that Oracle Database 10g imposes on simple views, there are still more rules for views with ... TRACK_ID column as the primary key and keep the for- eign key constraints the same as before. These commands drop the table and create it with primary and foreign keys. There are no NOT NULL constraints ... syntax for the CREATE VIEW command is shown in Figure 20.7. The way in which constraints are handled for the CREATE VIEW command is the same as for the CREATE TABLE command. As a result, no examples...

Ngày tải lên: 21/01/2014, 18:20

... chapter covers sequences and synonyms. 21.4 Endnotes 1. Oracle Performance Tuning for 9i and 10g (ISBN: 1-55558-305-9) 2. Oracle Performance Tuning for 9i and 10g (ISBN: 1-55558-305-9) Figure 21.8 Querying USER_INDEXES and ... indexes:  Primary, Foreign, and Unique Keys. Primary and unique key con- straints have indexes created automatically by Oracle Database. It is recommended to create indexes for all foreign key constraints. ... respectively. Oracle Database 10 g forces password definition on installation. You know what they are if you installed the database. If not, ask the person who did the installation for the passwords....

Ngày tải lên: 21/01/2014, 18:20

Ngày tải lên: 21/01/2014, 18:20

Ngày tải lên: 21/01/2014, 18:20

Ngày tải lên: 21/01/2014, 18:20

Ngày tải lên: 21/01/2014, 18:20

Ngày tải lên: 22/03/2014, 11:20

Ngày tải lên: 07/04/2014, 15:47

Ngày tải lên: 07/04/2014, 15:47

Ngày tải lên: 27/06/2014, 06:20