pl sql collections and records

... Advantages of PL/ SQL Figure 1–1 PL/ SQL Boosts Performance SQL SQL Application Other DBMSs SQL SQL Application Application SQL IF THEN SQL ELSE SQL END IF; SQL Oracle Database with PL/ SQL RPC Oracle ... Started with PL/ SQL Chapter 1, "Overview of PL/ SQL" Summarizes the main features of PL/ SQL and their advantages Introduces the basic concepts behind PL/ SQL and the general appearance of PL/ SQL programs ... how to detect and handle PL/ SQL errors using exceptions and handlers Chapter 11, "Tuning PL/ SQL Applications for Performance" Shows how to improve performance for PL/ SQL- based applications Chapter...

Ngày tải lên: 24/01/2014, 08:20

... Advantages of PL/ SQL Figure 1–1 PL/ SQL Boosts Performance SQL SQL Application Other DBMSs SQL SQL Application Application SQL IF THEN SQL ELSE SQL END IF; SQL Oracle Database with PL/ SQL RPC Oracle ... Oracle Database PL/ SQL User’s Guide and Reference PL/ SQL Architecture Figure 1–3 PL/ SQL Engine PL/ SQL Engine procedural PL/ SQL Block PL/ SQL Block Procedural Statement Executor SQL SQL Statement ... compile-time and runtime limits imposed by PL/ SQL Appendix D, "PL/ SQL Reserved Words and Keywords" Lists the words that are reserved for use by PL/ SQL PL/ SQL Sample Programs You can install the PL/ SQL...

Ngày tải lên: 30/03/2014, 22:20

... Examples Code examples illustrate SQL, PL/ SQL, SQL* Plus, or other command-line statements They are displayed in a monospace (fixed-width) font and separated from normal text as shown in this example: ... column names, packages and classes, user names and roles, program units, and parameter values Enter sqlplus to open SQL* Plus You can back up the database by using the BACKUP command Query the TABLE_NAME ... datatypes, RMAN keywords, 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...

Ngày tải lên: 24/10/2013, 17:15

... 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 SQL Specifics: ... With PL/ SQL, you can use SQL statements to finesse Oracle data, and PL/ SQL control statements to process the data Introduction to Oracle9i: PL/ SQL I-3 PL/ SQL Environment PL/ SQL engine PL/ SQL block ... Creating and Managing Database Objects PL/ SQL: Basics PL/ SQL: Procedures, Functions, and Packages PL/ SQL: Database Programming SQL for End Users: Part SQL for End Users: Part Advanced PL/ SQL: Implementation...

Ngày tải lên: 27/10/2013, 22:15

... Using SQL* Plus to Create Reports and Manage PL/ SQL Code CĆ7 CĆ8 Introduction to Oracle: SQL and PL/ SQL Using Procedure Builder Comparison of SQL and SQL* Plus Commands This table compares SQL and SQL* Plus ... the SQL* Plus environment, and display column definitions Using SQL* Plus to Create Reports and Manage PL/ SQL Code CĆ5 Entering Commands in SQL* Plus CĆ6 Introduction to Oracle: SQL and PL/ SQL Using ... Manipulating PL/ SQL Using SQL* Plus You can use SQL* Plus to create, debug, and execute PL/ SQL blocks D Create and modify anonymous blocks and program units with SQL* Plus and the online editor D Execute SQL* Plus...

Ngày tải lên: 17/01/2014, 09:20

... environments 1-22 PL/ SQL User’s Guide and Reference Advantages of PL/ SQL Tight Integration with SQL The PL/ SQL and SQL languages are tightly integrated PL/ SQL supports all the SQL datatypes and the non-value ... Application Other DBMSs SQL SQL Application Application SQL IF THEN SQL ELSE SQL END IF; SQL RPC Oracle with PL/ SQL Oracle with PL/ SQL and Stored Procedures PL/ SQL also improves performance by ... local PL/ SQL engine must rely on Oracle to process PL/ SQL blocks and subprograms When it contains the PL/ SQL engine, an Oracle server can process PL/ SQL blocks and subprograms as well as single SQL...

Ngày tải lên: 17/01/2014, 09:20

... PL/ SQL Environment PL/ SQL engine PL/ SQL block PL/ SQL block PL/ SQL SQL Procedural Statement Executor SQL Statement Executor Oracle Server Hint Draw attention to the fact that PL/ SQL can ... SQL and SQL* Plus Interaction SQL Statements SQL Statements Buffer Server SQL* Plus SQL* Plus Commands Query Results Hint Give an overview of all the uses of the SQL statements Explain SQL as ... buffer SQL* Plus • An environment • Oracle proprietary • Keywords can be abbreviated • Commands not allow manipulation of values in the database SQL* Plus commands SQL* Plus buffer Hint For SQL commands,...

Ngày tải lên: 24/01/2014, 10:20

... Application Other DBMSs SQL SQL Application SQL IF THEN SQL ELSE SQL END IF; SQL Oracle8i with PL/ SQL Application RPC Oracle8i with PL/ SQL and Stored Procedures PL/ SQL also improves performance ... cached and shared among users That lowers memory requirements and invocation overhead Overview 1-21 Advantages of PL/ SQL Figure 1–5 PL/ SQL Boosts Performance SQL SQL Application Other DBMSs SQL SQL ... local PL/ SQL engine must rely on Oracle to process PL/ SQL blocks and subprograms When it contains the PL/ SQL engine, an Oracle server can process PL/ SQL blocks and subprograms as well as single SQL...

Ngày tải lên: 07/08/2014, 11:22

... types, and improve readability by indicating the intended use of constants and variables PL/ SQL predefines several subtypes in package STANDARD For example, PL/ SQL predefines the subtypes CHARACTER and ... functions and format models, see Oracle8i SQL Reference 2-24 PL/ SQL User’s Guide and Reference User-Defined Subtypes User-Defined Subtypes Each PL/ SQL base type specifies a set of values and a set ... to another For example, if you want to examine a rowid, you must convert it to a character string PL/ SQL supports both explicit and implicit (automatic) datatype conversion Explicit Conversion...

Ngày tải lên: 07/08/2014, 11:22

... the SQL statements and, in some cases, returns data to the PL/ SQL engine Figure 4–3 Context Switching PL/ SQL Engine Procedural Statement Executor procedural PL/ SQL Block SQL Engine SQL d a t a SQL ... 5-1 SQL Support SQL Support By extending SQL, PL/ SQL offers a unique combination of power and ease of use You can manipulate Oracle data flexibly and safely because PL/ SQL fully supports all SQL ... also applies to implicit comparisons For example, collections cannot appear in a DISTINCT, GROUP BY, or ORDER BY list Manipulating Collections Within PL/ SQL, collections add flexibility and procedural...

Ngày tải lên: 07/08/2014, 11:22

... VARIABLE return_code NUMBER Both SQL* Plus and PL/ SQL can reference the host variable, and SQL* Plus can display its value However, to reference a host variable in PL/ SQL, you must prefix its name with ... cursor variable */ EXEC SQL CLOSE :generic_cv; } exit(0); } void sql_ error() { /* Handle SQL error here */ } 5-28 PL/ SQL User’s Guide and Reference Using Cursor Variables Example A host variable ... EXEC SQL END DECLARE SECTION; /* Handle Oracle errors */ EXEC SQL WHENEVER SQLERROR DO sql_ error(); /* Connect to Oracle */ EXEC SQL CONNECT :uid; /* Initialize cursor variable */ EXEC SQL ALLOCATE...

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 ... the constraints WNPS and RNPS if the function calls SQLCODE or SQLERRM Unhandled Exceptions Remember, if it cannot find a handler for a raised exception, PL/ SQL returns an unhandled exception error ... IMMEDIATE and OPEN-FOR-USING dynamic SQL statements s 7-32 SELECT, INSERT, UPDATE, and DELETE data manipulation statements SQL statements parsed using DBMS _SQL. PARSE() PL/ SQL User’s Guide and Reference...

Ngày tải lên: 07/08/2014, 11:22