... vòng 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 ... 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; ...
Ngày tải lên: 22/08/2012, 09:51
OCP: Oracle8i DBA SQL and PL/SQL Study Guide
... number: One person can have only one Social Security number, and a Social Security number can belong to only one person One-to-Many A one-to-many relationship is one in which an occurrence of one ... the application is tested again Application users the acceptance testing Implementation Implementation is the final stage in the development cycle Once the testing is complete, the application is ... exception section of a PL/ SQL block pass control? A The current exception section B The executable section of the enclosing PL/ SQL block C The exception section of the enclosing PL/ SQL block D The operating...
Ngày tải lên: 16/10/2013, 13:15
Oracle PL/SQL Language Pocket Reference- P5
... an exception is raised within the execution section of a PL/ SQL block, control passes to the exception section PL/ SQL then scans through the exception handlers to see if that exception is handled ... 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, ... Exception Section Exception Handlers Contents: Why Exception Handling? The Exception Section Types of Exceptions Determining Exception-Handling Behavior Raising an Exception Handling Exceptions...
Ngày tải lên: 17/10/2013, 22:15
SQL and PL/SQL Using Procedure Buider
... Builder SQL, SQL* Plus, and PL/ SQL SQL, SQL* Plus, and PL/ SQL commands are used to access and manipulate data stored in an Oracle database SQL* Plus, SQL, and PL/ SQL Language or Tool Description SQL ... module ends on Day with an optional summary covering the SQL and SQL* Plus content The second module ends on Day with an optional summary of the PL/ SQL section DAY Lesson Selecting Rows Lesson Limiting ... Indexes Lesson 16 Controlling User Access Lesson 17 Summary of SQL and SQL* Plus (optional) Introduction IĆ5 IĆ6 Introduction to Oracle: SQL and PL/ SQL Using Procedure Builder Course Outline continued...
Ngày tải lên: 19/10/2013, 11:15
Oracle PL/SQL Language Pocket Reference- P6
... expressions (SQL functions on those columns, constants, etc.) In PL/ SQL, the select list of a SELECT may contain PL/ SQL variables, expressions, and even functions (PL/ SQL Release 2.1 and above) Please ... record (or variable on one list), a corresponding field in the second list (or variable in second list) has the same PL/ SQL datatype, or one which can be converted implicitly by PL/ SQL to match the ... returns more than one row, PL/ SQL immediately raises the TOO_MANY_ROWS exception In either case, once the exception is raised, control shifts to the exception section of the PL/ SQL block Previous:...
Ngày tải lên: 20/10/2013, 17:15