advanced sql Functions in Oracle 10G phần 4 ppt

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Ngày tải lên: 08/08/2014, 18:21

... mem_type)) Using PL /SQL to Create Functions toUsing PL /SQL to Create Functions to Access ElementsAccess Elements Functions may be created in PL /SQL to manipulate VARRAYs. The functions may be placed in ... '325 14& apos;) Walsh ADDRESS_OBJ(&apos ;4 D St.', 'Gulf Breeze', 'FL', '32563') SELECTing Individual Columns inSELECTing Individu...

Ngày tải lên: 08/08/2014, 18:21

... command, 43 -44 using, 44 -45 using with COMPUTE, 46 -48 BTITLE command, 49 -51 C caret, negating, 241 - 243 CASE statement, 1 54- 155 CAST function, using with VARRAY, 308-311 CEIL function, 7 using, 8 classes, bracketed, ... 3 -4 SQL statement, execution order of, 65-77 using analytical function in, 77-80 SQL tables, generating XML from, 344 - 347 SQRT function, 4 using, 6...

Ngày tải lên: 08/08/2014, 18:21

... categorize Oracle s SQL functions into simple SQL functions, numeric functions, statistical functions, string functions, and date functions. In this chapter, we selectively illustrate several functions ... Function 24 Date Functions 27 Chapter 2 Reporting Tools in Oracle s SQL* Plus 31 COLUMN 32 Formatting Numbers 35 Scripts 39 Formatting Dates 41 BREAK 43 COMPUTE...

Ngày tải lên: 08/08/2014, 18:21

... in analytical functions are most easily explained by way of examples, so let’s begin with the row numbering and ranking functions. The Row-numbering and RankingThe Row-numbering and Ranking Functions There ... 22-SEP-98 35000 44 000 W 1 04 Christina 08-MAR-98 43 000 55000 W 108 David 08-JUL-01 37000 39000 E 111 Katie 13-APR-00 45 000 49 000 E 106 Chloe 19-JAN-96 33000 44 000 W 1...

Ngày tải lên: 08/08/2014, 18:21

... LAST Giving: EMPNO ENAME NVL(CURR_SALARY ,44 444 ) SALARY 1 04 Christina 55000 1 122 Lindsey 52000 2 111 Katie 49 000 3 102 Stephanie 44 000 6 106 Chloe 44 000 6 101 John 44 444 4 108 David 44 444 4 You ... CURR_SALARY SALARY 1 04 Christina 55000 1 122 Lindsey 52000 2 111 Katie 49 000 3 102 Stephanie 44 000 4 106 Chloe 44 000 4 92 The Analytical Functions in Oracle...

Ngày tải lên: 08/08/2014, 18:21

... employee1 GROUP BY certified 1 54 The Use of Analytical Functions in Reporting (Analytical Functions III) Chapter 6 The MODEL or SPREADSHEET Predicate in Oracle s SQL The MODEL statement allows ... SPREADSHEET Predicate in Oracle s SQL Giving: RN COUNT(*) CERTIFIED REGION 11NE 23NW 34N 42 YE 51YW 63Y 77 All of the same information as the previous example is shown, but it i...

Ngày tải lên: 08/08/2014, 18:21

... dual 226 Regular Expressions: String Searching and Oracle 10g Giving: PRODUCT AMOUNT AMOUNT*2 YEAR Cotton 19872 39 744 20 04 Cotton 21600 43 200 2005 Cotton 240 00 48 000 2006 In most of the examples we ... uses REs in a programming language, their use within Oracle will be very similar. The conjunction of string searching, REs, Oracle 10g, and POSIX is that in rewriting t...

Ngày tải lên: 08/08/2014, 18:21

... available in PL /SQL since Oracle 7. In the O7 version of Oracle, TABLEs (aka INDEX-BY TABLEs) were introduced in PL /SQL. The PL /SQL TABLE is much like the idea that pro- grammers have of an array. In ... programming arrays; however, in PL /SQL TABLEs, there is flexibility and a connection to SQL with TYPEing with these array-like structures. The use of PL /SQL TYPEing t...

Ngày tải lên: 08/08/2014, 18:21

... demonstrated. Generating XML fromGenerating XML from “Ordinary” Tables“Ordinary” Tables Suppose we have the following table in our SQL account, where: DESC chemical 344 SQL and XML 4 A common tool that links, ... converting SQL tables into XML for- mats include using the functions XMLAttribute and XMLForest. 5 XML to SQLXML to SQL Creating a SQL structure from an XML document...

Ngày tải lên: 08/08/2014, 18:21