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match.Then I wrote an example:CREATE OR REPLACE PROCEDURE give_bonus (emp_no_id in number, bonus in number) AUTHID Current_userisbegin dbms_output.Put_Line (emp_no_id); Dbms_output. Put_Line (bonus); END give_bonus;/This is followed by the use of the case expressiondeclarel_salnumber; beginselectsalintol_salfromemp whereempno=7839;dbms_output. Put_Line (l_sal); give_bonus (7839, CASE whenl_sal>=1000andl_salSo it's actually an expression, and then the expression gets a result.After the introduct

1) classification of Sets Oracle supports three types of collections: Associative array (Index-by table) Nested table) Variable-length array (VARRAY) One of their differences is that the Nested table and VARRY can be used either in PL/SQL or directly in the database, but the Associative array doesn't work, that is, associative array cannot be created separately u

Tags: col program configuration SQL query field positioning Rod AC MVCThese days encountered two problems, are very wonderful, distressed for three days, the final positioning out.Problem one, inserting data through PL/SQL developer to a remote Oracle database server, querying data through

Develop PL/SQL subprograms and packages, write triggers using PL/SQL, and Apply Oracle and pljdbc to JDBC. 1. subprograms: Declaration, executable, and Exception Handling (optional) 2. subprogram classification: A. Process-execute some operations A. syntax of the creation pr

. Manipulating LOB Data Objects in Pl/sql using the package Dbms_lob provided by Oracle. LOB data types can be grouped into the following four categories: . BFILE . Blob . Clob . NCLOB Operator As with other programming languages, Pl/

triggersA. Enabling and disabling triggers: When to prohibit: Prohibit data import and exportsql> ALTER TRIGGER aiu_itemfile DISABLE;sql> ALTER TRIGGER aiu_itemfile ENABLE;B. recompiling a trigger: After a database object has changedC. Deleting a triggersql> DROP TRIGGER Aiu_itemfile;19. Triggers and stored proceduresTrigger Stored proceduresWrite no parameter, return value has parameter, return value (parameter)Write cannot commit or rollback canCal

locator) is stored in the original table. This locator is a pointer to the actual data. To operate LOB Data Objects in PL/SQL, use the DBMS_LOB.LOB package provided by ORACLE. The data types can be divided into the following four types: . BFILE. BLOB. CLOB [1] [2] Next page The ORACLE tutorial is the basics of

types:numeric Table 2 Character data types Table 3 Date and Boolean LOB data type LOB (Large object, Large object) data type is used to store large data objects such as images, sounds, and LOB data objects can be binary or character data with a maximum length of no more than 4G. LOB data types support arbitrary access, and long only supports sequential access. The LOB is stored in a separate location, while a lob locator (LOB locator) is stored in the original table, which is a pointer to t

PLSQLPL/SQL developer is an Oracle Database DeveloperProgramIntegrated Unit Development Environment (IDE). With PL/SQL developer, you can easily create the server part of your client/server application. So far, you can do the following in the worst case:• Use a text editor to Write Program units (processes, triggers, a

Oracle PL/SQL practiceBasic InformationAuthor: (English) bilington (A.) and so on, Lu Tao [Translator's introduction]Press: People's post and telecommunications PressISBN: 9787115294852Mounting time:Published on: February 1, November 2012Start: 16Page number: 166Version: 1-1Category: Computer> database> Oracle For more

1. Traditional layer by layer data, and Plsql as a separate unit to return to the client, reduce the query, reduce the network transmission of the round trip, funny2.pl/sql statement blocks are divided into two types: naming (subroutines, functions, packages that exist in the database, and later can be referenced by name), AnonymousDifference: A named statement block is stored in a database, referenced by a

must execute I hope this article will help you with Oracle database programming. Articles you may be interested in: Knowledge points for PL/SQL programs in oracle review notes Solution to PL/

access. Lob is stored in a separate location, and a "Lob locator" (lob Locator) is stored in the original table. This locator is a pointer to the actual data. To operate lob Data Objects in PL/SQL, use the dbms_lob.lob package provided by Oracle. The data types can be divided into the following four types:. Bfile. Blob. Clob. NclobOperatorLike other

PL/SQL programming, plsql ProgrammingPL/SQL programming 1: What is PL/SQL (1) PL/SQL architectu

The ORACLE tutorial is as follows: Oracle PL/SQL getting started. I. Objective of PL/SQL Structured Query Language (SQL) is a common Language used to access relational databases. It is

. 2.4 system trigger event attributes ................................... ........................................ ............................. 55 § 8. 2.5 use the trigger predicate .................................... ........................................ .................................... 56 § 8. 2.6 re-compile the trigger .................................... ........................................ .................................... 56 § 8. 3. Delete and enable triggers ..............