tables indexes and columns

... Cursor Specs and Bodies with Packages 9-14 10 Handling PL/SQL Errors Overview of PL/SQL Runtime Error Handling Guidelines for Avoiding and Handling PL/SQL Errors and Exceptions ... Tables Some programming examples in this guide use tables and other objects from the HR schema of the sample database These tables, such as EMPLOYEES and DEPARTMENTS, xxi are more extensive and ... Handling Raised PL/SQL Exceptions Handling Exceptions Raised in Declarations Handling Exceptions Raised in Handlers Branching to or from an Exception Handler...

Ngày tải lên: 24/01/2014, 08:20

... Collections and Records What are PL/SQL Collections and Records? 5-1 Understanding PL/SQL Collections 5-2 Understanding Nested Tables 5-2 Understanding Varrays ... Cursor Specs and Bodies with Packages 9-11 10 Handling PL/SQL Errors Overview of PL/SQL Runtime Error Handling Guidelines for Avoiding and Handling PL/SQL Errors and Exceptions ... Handlers Branching to or from an Exception Handler Retrieving the Error Code and Error Message: SQLCODE and SQLERRM Catching Unhandled Exceptions Tips for Handling...

Ngày tải lên: 30/03/2014, 22:20

... SQL keywords, SQL*Plus or utility commands, packages and methods, as well as system-supplied column names, database objects and structures, user names, and roles You can specify this clause only ... typeface indicates monospace executables and sample user-supplied (fixed-width font) elements Such elements include computer and database names, net service names, and connect identifiers, as well ... identifiers, as well as user-supplied database objects and structures, column names, packages and classes, user names and roles, program units, and parameter values Enter sqlplus to open SQL*Plus...

Ngày tải lên: 24/10/2013, 17:15

... Techniques Oracle SQL: DML and DDL Oracle SQL and SQL*Plus: Advanced SELECT Statements Oracle SQL and SQL*Plus: SQL*Plus and Reporting Oracle SQL Specifics: Retrieving and Formatting Data Oracle ... PL/SQL is an instructor-led course featuring lectures and hands-on exercises Online demonstrations and practice sessions reinforce the concepts and skills that are introduced Preface - Related Publications ... executable and declarative sections Optional Executable Contains SQL statements to manipulate data in the database and PL/SQL statements to manipulate data in the block Mandatory Exception handling...

Ngày tải lên: 27/10/2013, 22:15

... between SQL and SQL*Plus commands D Identify SET commands used to control the SQL*Plus environment D Customize reports using SQL*Plus formatting commands D Create and modify anonymous blocks and program ... command prompt Issue all your commands at this prompt Three types of commands can be entered at this prompt D SQL commands to manipulate data and structures in the database D SQL*Plus command ... Create and modify anonymous blocks and program units with SQL*Plus and the online editor D Execute SQL*Plus commands, anonymous blocks, program units, and SQL statements D Compile procedures and...

Ngày tải lên: 17/01/2014, 09:20

... Oracle Corporation; it is provided under a license agreement containing restrictions on use and discloĆ sure and is also protected by copyright law Reverse engineering of the software is prohibited ... Department of Defense, then it is delivered with Restricted Rights and the folĆ lowing legend is applicable: Technical Contributors and Reviewers Restricted Rights Legend Christian Bauwens Debra ... Nagarathnam Sandra Schrick Ulrike Schwinn Rosemarie Truman Jenny Tsai Laura Van Deusen Use, duplication or disclosure by the Government is subject to restrictions for commercial computer software and...

Ngày tải lên: 17/01/2014, 09:20

... Oracle Corporation; it is provided under a license agreement containing restrictions on use and discloĆ sure and is also protected by copyright law Reverse engineering of the software is prohibited ... Department of Defense, then it is delivered with Restricted Rights and the folĆ lowing legend is applicable: Technical Contributors and Reviewers Restricted Rights Legend Christian Bauwens Debra ... Nagarathnam Sandra Schrick Ulrike Schwinn Rosemarie Truman Jenny Tsai Laura Van Deusen Use, duplication or disclosure by the Government is subject to restrictions for commercial computer software and...

Ngày tải lên: 17/01/2014, 09:20

... 3-15 3-19 iii Collections and Records What Is a Collection? Understanding Nested Tables Nested Tables versus Index-by Tables Understanding Varrays ... manipulation, cursor control, and transaction control commands, as well as all the SQL functions, operators, and pseudocolumns So, you can manipulate Oracle data flexibly and safely Also, PL/SQL fully ... Guide and Reference has 11 chapters and appendices Chapters through 10 introduce you to PL/SQL and show you how to use its many features Chapter 11 serves as a reference to PL/SQL commands, syntax,...

Ngày tải lên: 17/01/2014, 09:20

... Oracle Corporation; it is provided under a license agreement containing restrictions on use and discloĆ sure and is also protected by copyright law Reverse engineering of the software is prohibited ... Department of Defense, then it is delivered with Restricted Rights and the folĆ lowing legend is applicable: Technical Contributors and Reviewers Restricted Rights Legend Christian Bauwens Debra ... Nagarathnam Sandra Schrick Ulrike Schwinn Rosemarie Truman Jenny Tsai Laura Van Deusen Use, duplication or disclosure by the Government is subject to restrictions for commercial computer software and...

Ngày tải lên: 24/01/2014, 10:20

... Oracle Corporation; it is provided under a license agreement containing restrictions on use and discloĆ sure and is also protected by copyright law Reverse engineering of the software is prohibited ... Department of Defense, then it is delivered with Restricted Rights and the folĆ lowing legend is applicable: Technical Contributors and Reviewers Restricted Rights Legend Christian Bauwens Debra ... Nagarathnam Sandra Schrick Ulrike Schwinn Rosemarie Truman Jenny Tsai Laura Van Deusen Use, duplication or disclosure by the Government is subject to restrictions for commercial computer software and...

Ngày tải lên: 24/01/2014, 10:20

... knowledge Appendixes and Answers Clearly identify which appendixes are available and where to find them in the manual and specifically where to find the practice demostrate tables and practice solutions ... the items are the columns The columns in a table can have names The rows are unordered and unnamed A database consists of one or more tables plus a catalog (also represented by tables) describing ... How commands cannot be abbreviated Type a keyword, abbreviated command, and demostrate the error message • Both the termination characters ; and / • Some simple case functions like upper() and lower()...

Ngày tải lên: 24/01/2014, 10:20

... and Services Introduction IĆ21 Server ÉÉÉÉ SQL and PL/SQL Scripts IĆ22 Introduction to Oracle: SQL and PL/SQL Using Procedure Builder SQL, SQL*Plus, and PL/SQL SQL, SQL*Plus, and PL/SQL commands ... concepts and techniques How This Course Is Organized Introduction to Oracle: SQL and PL/SQL Using Procedure Builder is an instructor-led course featuring lecture and hands-on exercises The concepts and ... recognizes and submits SQL and PL/SQL statements to the Server for execution and contains its own command language PL/SQL An Oracle procedural language for writing application logic and manipulating...

Ngày tải lên: 02/07/2014, 00:20

... 3-15 3-19 iii Collections and Records What Is a Collection? Understanding Nested Tables Nested Tables versus Index-by Tables Understanding Varrays ... PL/SQL variables and cursors have attributes, which are properties that let you reference the datatype and structure of an item without repeating its definition Database columns and tables have similar ... the details and focus on designing algorithms that manipulate the data structure Collections The collection types TABLE and VARRAY allow you to declare index-by tables, nested tables, and variable-size...

Ngày tải lên: 07/08/2014, 11:22

... 0.25) Fundamentals 2-43 Expressions and Comparisons Logical Operators The logical operators AND, OR, and NOT follow the tri-state logic shown in Table 2–3 AND and OR are binary operators; NOT is ... shows, AND returns TRUE only if both its operands are true On the other hand, OR returns TRUE if either of its operands is true NOT returns the opposite value (logical negation) of its operand For ... expression: DECLARE on_hand INTEGER; on_order INTEGER; BEGIN IF (on_hand = 0) OR ((on_order / on_hand) < 5) THEN END IF; END; When the value of on_hand is zero, the left operand yields TRUE, so...

Ngày tải lên: 07/08/2014, 11:22

... projects.LIMIT THEN Using FIRST and LAST FIRST and LAST return the first and last (smallest and largest) index numbers in a collection If the collection is empty, FIRST and LAST return NULL If the ... the interaction between TRIM and DELETE It is better to treat nested tables like fixed-size arrays and use only DELETE, or to treat them like stacks and use only TRIM and EXTEND PL/SQL does not ... emp; SQL Pseudocolumns PL/SQL recognizes the following SQL pseudocolumns, which return specific data items: CURRVAL, LEVEL, NEXTVAL, ROWID, and ROWNUM Pseudocolumns are not actual columns in a table...

Ngày tải lên: 07/08/2014, 11:22

... variables and PL/SQL variables, parameters, and functions In the example below, you open the cursor variable emp_cv Notice that you can apply cursor attributes (%FOUND, %NOTFOUND, %ISOPEN, and %ROWCOUNT) ... variable, use the command VARIABLE For example, you declare a variable of type NUMBER as follows: VARIABLE return_code NUMBER Both SQL*Plus and PL/SQL can reference the host variable, and SQL*Plus can ... PL/SQL User’s Guide and Reference Using Cursor Attributes Using Cursor Attributes Every explicit cursor and cursor variable has four attributes: %FOUND, %ISOPEN %NOTFOUND, and %ROWCOUNT When appended...

Ngày tải lên: 07/08/2014, 11:22

... exception handler into an enclosing block Error Handling 6-17 Handling Raised Exceptions Using SQLCODE and SQLERRM In an exception handler, you can use the built-in functions SQLCODE and SQLERRM ... handler Error Handling 6-15 Handling Raised Exceptions As the following example shows, use of the OTHERS handler guarantees that no exception will go unhandled: EXCEPTION WHEN THEN handle the error ... User’s Guide and Reference Understanding Procedures statement meets this requirement The exception-handling part contains exception handlers, which are placed between the keywords EXCEPTION and END...

Ngày tải lên: 07/08/2014, 11:22