pl sql oracle day 3
Trả lời bài tập ORACLE PL/SQL
... lặp PL/ SQL? Các kiểu vòng lặp có sẵn PL/ SQl là: • Lệnh loop-exit • Lệnh while-loop • Lệnh for-loop Phân biệt trỏ (cursor) ngầm trỏ tường minh? Cursor ngầm đòa không đặt tên lệnh SQL xử lý Oracle ... trỏ tường minh? Cursor ngầm đòa không đặt tên lệnh SQL xử lý Oracle và/hay chế thực thi PL/ SQL Mọi lệnh SQL thực cursor ngầm, bao gồm lệnh update, insert, delete lệnh select không thực cursors ... cursor tường minh, developer có toàn quyền điều khiển thực lệnh DECLARE CURSOR employee_cursor IS SELECT * FROM employee; ...
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Oracle PL SQL cơ bản
... LAST _DAY( H LAST _DAY( ' 28- 03- 2001 31 - 03- 2001 02-04-1981 30 -04-1981 31 -01-2001 28 03- 2001 31 - 03- 2001 03- 12-1981 31 -12-1981 31 -01-2001 28- 032 001 31 - 03- 2001 17-12-1980 31 -12-1980 31 -01-2001 28- 032 001 31 - 03- 2001 ... Hàm NULLIF 4.4.2 Hàm COALSCE 4.4 .3 Câu lệnh case . 23 23 23 23 24 24 26 30 32 34 34 35 36 36 36 36 Trang Quyển sách upload tại: hutonline.net Oracle - SQL PL/ SQL 4.5 BÀI TẬP 4.5.1 Hàm dòng liệu ... TWEEN('01-01-2000','05-10-2000') Trang 30 Quyển sách upload tại: hutonline.net Oracle - SQL PL/ SQL 241.271055 241.206 539 2 43. 367829 -9.129 032 3 -9.129 032 3 -9.129 032 3 Ví dụ hàm ADD_MONTHS(d,n) SELECT...
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Giới thiệu chung về Oracle PL SQL cơ bản
... Quyển sách upload tại: hutonline.net Oracle - SQL PL/ SQL 13. 1.4 Database Trigger Edditor 13. 2 CÁC HÀM, THỦ TỤC 13. 2.1 Tạo hàm, thủ tục Client 13. 2.2 Tạo hàm, thủ tục Server 13. 2 .3 Dò lỗi hàm, ... 91 91 92 92 92 93 95 95 96 97 97 97 98 99 100 100 101 101 102 .1 03 1 03 1 03 Trang Quyển sách upload tại: hutonline.net Oracle - SQL PL/ SQL Chương GIỚI THIỆU CHUNG 1.1.NGÔN NGỮ SQL 1.1.1 Lịch sử ... hàm 14.2.6 Hàm thủ tục 14 .3 PACKAGE 14 .3. 1 Cấu trúc package 14 .3. 2 Tạo package 14 .3. 3 Huỷ package 14 .3. 4 Lợi ích việc sử dụng package 14 .3. 5 Một số package chuẩn Oracle CHƯƠNG 15 DATABASE...
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Oracle PL/SQL Language Pocket Reference- P5
... arise in your application The following sections look at how you define, raise, and handle exceptions in PL/ SQL Previous: 7.7 Tips for PL/ SQL Loops 7.7 Tips for PL/ SQL Loops Oracle PL/ SQL Programming, ... different PL/ SQL programs even between client and server PL/ SQL programs Prior to PL/ SQL Release 2 .3, you would have had to fetch all data from the cursor, store it in PL/ SQL variables (perhaps a PL/ SQL ... of this book is on standalone PL/ SQL development, I present cursor variables as a PL/ SQL Release 2 .3 enhancement If you have PL/ SQL Release 2.2 and work with PL/ SQL in a host language environment,...
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Oracle PL/SQL Language Pocket Reference- P6
... Previous: 6 .3 Implicit and Explicit Cursors 6 .3 Implicit and Explicit Cursors Oracle PL/ SQL Programming, 2nd Edition Book Index Next: 6.5 Opening Cursors 6.5 Opening Cursors The Oracle Library ... through SQL cursor attributes The SQL cursor has the same four attributes as an explicit cursor: SQL% FOUND SQL% NOTFOUND SQL% ROWCOUNT SQL% ISOPEN 6.9.6 Differences Between Implicit and Explicit ... Implicit and Explicit Cursors Let's take a closer look at implicit and explicit cursors and the ways you can put them in your programs 6 .3. 1 Implicit Cursors PL/ SQL issues an implicit cursor whenever...
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Oracle PL/SQL Language Pocket Reference- P7
... to the explicit cursor Previous: 6.2 Cursors in PL/ SQL 6.2 Cursors in PL/ SQL Oracle PL/ SQL Programming, 2nd Edition Book Index Next: 6.4 Declaring Cursors 6.4 Declaring Cursors The Oracle Library ... Next: 6 .3 Implicit and Explicit Cursors 6 .3 Implicit and Explicit Cursors The Oracle Library Navigation Copyright (c) 2000 O'Reilly & Associates All rights reserved Please purchase PDF Split-Merge ... Statements 5.2 Sequential Control Statements Oracle PL/ SQL Programming, 2nd Edition Book Index Next: 6.2 Cursors in PL/ SQL 6.2 Cursors in PL/ SQL The Oracle Library Navigation Copyright (c) 2000...
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Oracle PL/SQL Programming
... 37 3 37 4 10.7 Clearing the PL/ SQL Table .37 4 37 6 10.8 PL/ SQL Table Enhancements in PL/ SQL Release 2 .3 37 6 10.8.1 PL/ SQL Tables ... 133 3. 4 Formatting PL/ SQL Blocks 133 135 3. 5 Formatting Packages 135 137 3. 6 Using Comments Effectively . 137 3. 6.1 ... 37 7 10.8.2 PL/ SQL Table Built−ins 37 9 38 3 10.9 Working with PL/ SQL Tables 38 3 10.9.1 Transferring Database Information to PL/ SQL Tables 38 3...
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Oracle PL/SQL Language Pocket Reference- P8
... Previous: 4 .3 NULLs in PL/ SQL 4 .3 NULLs in PL/ SQL Oracle PL/ SQL Programming, 2nd Edition Book Index Next: 4.5 Anchored Declarations 4.5 Anchored Declarations Please purchase PDF Split-Merge on ... Identifiers Oracle PL/ SQL Programming, 2nd Edition Book Index Next: 4 .3 NULLs in PL/ SQL 4 .3 NULLs in PL/ SQL The Oracle Library Navigation Copyright (c) 2000 O'Reilly & Associates All rights reserved Please ... how often PL/ SQL is performing conversions on your behalf Figure 4.1 shows what kinds of implicit conversions PL/ SQL can perform Figure 4.1: Implicit conversions performed by PL/ SQL Please purchase...
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Oracle PL/SQL Language Pocket Reference- P9
... 3. 2 Formatting SQL Statements 3. 2 Formatting SQL Statements Oracle PL/ SQL Programming, 2nd Edition Book Index Next: 3. 4 Formatting PL/ SQL Blocks 3. 4 Formatting PL/ SQL Blocks The Oracle Library ... Previous: 3. 4 Formatting PL/ SQL Blocks 3. 4 Formatting PL/ SQL Blocks Oracle PL/ SQL Programming, 2nd Edition Book Index Next: 3. 6 Using Comments Effectively 3. 6 Using Comments Effectively The Oracle ... reserved Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark Previous: 3. 2 Formatting SQL Statements Chapter Effective Coding Style Next: 3. 4 Formatting PL/ SQL Blocks 3. 3 Formatting...
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SQL và PL/SQL Cơ bản Oracle cơ bản
... LAST _DAY( H LAST _DAY( ' 28- 03- 2001 31 - 03- 2001 02-04-1981 30 -04-1981 31 -01-2001 28 03- 2001 31 - 03- 2001 03- 12-1981 31 -12-1981 31 -01-2001 28- 032 001 31 - 03- 2001 17-12-1980 31 -12-1980 31 -01-2001 28- 032 001 31 - 03- 2001 ... 12-01-19 83 23- 01-1982 SAL COMM 5000 2850 2450 2975 1250 1600 1500 950 1250 30 00 800 30 00 1100 130 0 1400 30 0 500 DEPTNO 10 30 10 20 30 30 30 30 30 20 20 20 20 10 Trang 15 Oracle - SQL PL/ SQL Hiển ... TWEEN('01-01-2000','05-10-2000') Trang 30 Oracle - SQL PL/ SQL 241.271055 241.206 539 2 43. 367829 -9.129 032 3 -9.129 032 3 -9.129 032 3 Ví dụ hàm ADD_MONTHS(d,n) SELECT HIREDATE, FROM EMP WHERE DEPTNO=20; ADD_MONTHS(HIRE ,3) , ADD_MONTHS(HIREDATE, -3) ...
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Oracle PL/SQL Language Pocket Reference- P10
... Favorite (PL/ SQL) Things 1.6 A Few of My Favorite (PL/ SQL) Things Oracle PL/ SQL Programming, 2nd Edition Book Index Next: PL/ SQL Language Fundamentals PL/ SQL Language Fundamentals The Oracle Library ... Previous: 1.4 PL/ SQL Versions 1.4 PL/ SQL Versions Oracle PL/ SQL Programming, 2nd Edition Book Index Next: 1.6 A Few of My Favorite (PL/ SQL) Things 1.6 A Few of My Favorite (PL/ SQL) Things The Oracle ... Programming in Oracle Applications 1.2 The Concept of Programming in Oracle Applications Oracle PL/ SQL Programming, 2nd Edition Book Index Next: 1.4 PL/ SQL Versions 1.4 PL/ SQL Versions The Oracle Library...
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Oracle PL/SQL Language Pocket Reference- P11
... most of PL/ SQL' s features as it existed through PL/ SQL Release 2 .3 With the release of Oracle8 , however, we faced a challenge: how we fit all the new technologies of PL/ SQL8 into Oracle PL/ SQL Programming ... written in SQL* Forms, SQL* Reportwriter, SQL* Plus, and SQL* Menu While their PL/ SQL skills have progressed to meet the needs of specific applications, most could expand both their PL/ SQL knowledge ... second edition of Oracle PL/ SQL Programming is divided into seven parts: Part 1, Programming in PL/ SQL Chapters through explain what it means to program in PL/ SQL and in Oracle- based applications in...
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Oracle PL/SQL Language Pocket Reference- P12
... PL/ SQL Tables Chapter 10 PL/ SQL Tables Next: 10.4 Declaring a PL/ SQL Table 10 .3 PL/ SQL Tables and DML Statements Tables are PL/ SQL constructs PL/ SQL is a linguistic extension of the Oracle SQL ... Characteristics of PL/ SQL Tables PL/ SQL Tables and DML Statements Declaring a PL/ SQL Table Referencing and Modifying PL/ SQL Table Rows Filling the Rows of a PL/ SQL Table Clearing the PL/ SQL Table PL/ SQL Table ... PL/ SQL Release 2 .3 offers several substantial enhancements to the PL/ SQL tables, covered in Section 10.8, "PL/ SQL Table Enhancements in PL/ SQL Release 2 .3" If you are using PL/ SQL Release 2.3...
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Oracle PL/SQL Language Pocket Reference- P13
... PL/ SQL Table Oracle PL/ SQL Programming, 2nd Edition Book Index Next: 10.8 PL/ SQL Table Enhancements in PL/ SQL Release 2 .3 10.8 PL/ SQL Table Enhancements in PL/ SQL Release 2 .3 The Oracle Library ... local memory than the Oracle database shared memory Previous: 10.8 PL/ SQL Table Enhancements in PL/ SQL Release 2 .3 10.8 PL/ SQL Table Enhancements in PL/ SQL Release 2 .3 Oracle PL/ SQL Programming, ... the Rows of a PL/ SQL Table Chapter 10 PL/ SQL Tables Next: 10.8 PL/ SQL Table Enhancements in PL/ SQL Release 2 .3 10.7 Clearing the PL/ SQL Table What happens when you are done with a PL/ SQL table and...
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Oracle PL/SQL Language Pocket Reference- P14
... `1 23' from the front of a string: my_string := '1 231 231 23LotsaLuck1 23' ; LTRIM (my_string, '1 23' ) ==> 'LotsaLuck1 23' In this example, LTRIM stripped off all three leading repetitions of "1 23" ... text"[ 3] [ 26] [ 29]of "text wh"[ 5][ 29] [ 34 ]text "which w"[ 6][ 34 ] [ 40]which "we will"[ 3] [ 40] [ 43] we "will wr"[ 5][ 43] [ 48]will "wrap to"[ 5][ 48] [ 53] wrap "to smal"[ 3] [ 53] [ 56]to ... is a very long line of text which we will wrap to smaller lines 1 234 5678901 234 5678901 234 5678901 234 5678901 234 5678901 234 5678901 234 5678 Wrapping to: characters ==================== "This is"[ 5][...
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Tài liệu Oracle PL/SQL For Dummies P2 pdf
... with SQL What’s new in Oracle SQL and PL/ SQL? Oracle SQL and PL/ SQL are evolving languages that constitute the backbone of applications written for the Oracle environment Every version of the Oracle ... ideal for writing large, complex programs that must interact with an Oracle database The difference between SQL and PL/ SQL SQL and PL/ SQL are completely different languages SQL is a limited language ... lot about SQL* Plus, but understanding some basics about how to run/save/edit scripts could be useful in case you’re limited to SQL* Plus Figure 2 -3: The Oracle i SQL* Plus Web interface 29 30 Part...
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Tài liệu Oracle PL/SQL For Dummies P1 doc
... 13 What is a DBMS? 16 The Scoop on SQL and PL/ SQL 16 The purpose of SQL and PL/ SQL 17 The difference between SQL and PL/ SQL 18 What’s new in Oracle SQL and PL/ SQL? ... 2 53 Part V: Taking PL/ SQL to the Next Level 289 Chapter 12: Transaction Control 291 Chapter 13: Dynamic SQL and PL/ SQL 31 3 Chapter 14: PL/ SQL Best Practices .33 5 ... Part I: Basic PL/ SQL Concepts .7 Chapter 1: PL/ SQL and Your Database Chapter 2: The PL/ SQL Environment . 23 Part II: Getting Started with PL/ SQL 39 Chapter 3: Laying the...
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Tài liệu Oracle PL/SQL Language Pocket Reference- P15 pptx
... (- 231 -1 through 231 -1): POWER (-2, 31 ) - POWER (2, 31 ) - or: -21474 836 37 21474 836 37 13. 1.15 The ROUND function The ROUND function returns the first argument rounded to the number of decimal places ... are some examples: TRUNC (1 53. 46) ==> 1 53 TRUNC (1 53. 46, 1) ==> 1 53. 4 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark TRUNC (-20 03. 16, -1) ==> -2000 13. 1. 23 Rounding ... examples: ROUND (1 53. 46) ==> 1 53 ROUND (1 53. 46, 1) ==> 1 53. 5 ROUND (1 53, -1) ==> 150 For a comparison of ROUND with several other numeric functions, see Section 13. 1. 23 later in this chapter 13. 1.16...
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Tài liệu Oracle PL/SQL Language Pocket Reference- P16 ppt
... features of PL/ SQL Chapter 17, Calling PL/ SQL Functions in SQL, describes how you can construct PL/ SQL functions and call them from SQL Previous: 14 .3 Conversion Function Examples 14 .3 Conversion ... Next: 15 .3 The Anonymous PL/ SQL Block 15.2 Review of PL/ SQL Block Structure Chapter 1, Introduction to PL/ SQL, provided a brief introduction to the PL/ SQL block and its structure Before we explore ... the PL/ SQL language and explains how to build complete PL/ SQL applications using program modules q q q Chapter 15, Procedures and Functions, presents the basics of modular programming in PL/ SQL...
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Tài liệu Oracle PL/SQL Language Pocket Reference- P17 docx
... a package body Previous: 15 .3 The Anonymous PL/ SQL Block 15 .3 The Anonymous PL/ SQL Block Oracle PL/ SQL Programming, 2nd Edition Book Index Next: 15.5 Functions The Oracle Library Navigation Copyright ... Chapter 2, PL/ SQL Language Fundamentals, for a complete list of rules) Let's look at a couple of examples of applying block labels In the first example, I place a label in front of my block simply to ... additional examples illustrating the concept of scope in PL/ SQL blocks Figure 15.8: Scope of identifiers in PL/ SQL blocks 15 .3. 5 .3 Qualifying identifier names with module names When necessary, PL/ SQL offers...
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