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PL/SQL Developer Import and Export Database methods and instructions

PL/SQL DeveloperYesOracle DatabaseThis document describes how to use PL/SQL Developer to import and export databases, and describes precautions for importing or exporting databases, next we will introduce them one by one. Export Steps: 1 tools-> export user object selection option to export the. SQL file. 2 tools-> export tables-> Oracle Export select to export the. dmp file. Import steps: Note: It is best

Query multiple records with the cursor in PL/SQL

1. What is the cursor? Oracle uses two types of cursor: explicit cursor and implicit cursor. No matter how many records are returned by the statement, PL/SQL implicitly declares a cursor for each SQL command, such as UPDATE, DELETE, and INSERT. To manage SQL statement processing, you must implicitly define a cursor for it .) The user declares and uses the display cursor to process multiple records returned by the SELECT statement. The display defines

Oracle PL/SQL

(1). PL/SQL is not case sensitive.(2). Character Type:CHAR: up to 32767 characters.(3). Fast format:BeginDeclareBeginExceptionEndEndNote: If you use the first bengin, you must use the second one, and vice versa.(4) annotation method:Single Row -- this is a one-line commentMultiple rows/* this isIsOne-line comment*/(5) PL/SQL can directly support DML queries, but does not support DDL commands. You usually us

Day 4, PL/SQL Basics

2008/03/20 Basic PL/SQL 1. PL/SQL Basics 2. PL/SQL Block StructureDeclare... Variable DeclarationBegin....Exception....End;/ Variable declaration contentAssign a proper variable name, the correct data type of the variable, define the variable, and control the variable range.Naming rulesIt must start with a character and can contain numbers, underscores, $

How to Use PL/SQL Developer in Oracle 11g

My environment is like this: Win7 64-bit + Oracle 11g + PL/SQL 9.04 Since PL/SQL does not support 64-bit data at the moment, only Oracle client 32-bit data can be used, so you need to download it from the official website: Remember: you must download a 32-bit package) Http://www.oracle.com/technetwork/database/features/instant-client/index-097480.html 650) this. width = 650; "src =" http://www.bkjia.com/upl

IT Ninja Turtles PL/SQL Developer tips and shortcuts, Ninja Turtles developer

IT Ninja Turtles PL/SQL Developer tips and shortcuts, Ninja Turtles developer 1. SQL plus Window: File-> New-> Command Window. This is similar to the SQL plus client tool of oracle, but it is much easier to use than it. 2. Set the Keyword to Uppercase automatically: Tools-> Preferences-> Editor, and select Uppercase for Keyword case. In this way, when an SQL statement is entered in the window, the keywords are automatically capitalized, while the othe

PL/SQL developer Import and Export Database methods and instructions

PL/SQL developerYesOracle DatabaseThis document describes how to use PL/SQL developer to import and export databases, and describes precautions for importing or exporting databases, next we will introduce them one by one. Export Steps: 1 tools-> Export user object selection option to export the. SQL file. 2 tools-> export tables-> Oracle export select to export the. dmp file. Import steps: Note: I

PL/SQL Developer how to connect a 64-bit Oracle plot

Due to the continuous updating of hardware technology, Win7 system gradually become mainstream, and computer memory gradually increased, in order to make full use of memory resources (because 32 of the system can only use up to 3G of memory), improve system performance, many people began to use the Win7 (64Bit) system. A 64-bit Oracle database is installed on a 64-bit system, but there is no corresponding 64-bit PL/SQL Developer, and it is not possibl

PL/SQL Developer running on Oracle 64-bit database initialization error

Label:After installing Oracle (64-bit), PL/SQL developer, execute PL/SQL occurs for example the following error:On the Internet, my PL/SQL developer is incompatible with Oracle, that is, PL/SQL does not support 64-bit Oracle, so the next 32-bit orcaleclient will be configured with the corresponding number of parameters

PL/SQL Learning notes _03_ storage functions and stored procedures

ORACLE provides the ability to store PL/SQL programs in a database, and can run it from anywhere. This is called a stored procedure or function . Stored function: There is a return value, after creation is completed, through the Select function () from dual;Stored procedure: Because there is no return value, after creation is complete, you cannot use the SELECT statement, only the PL/SQL blocks can be used

PL/SQL Basic 1 (note)

--Basic structureDECLARE--Variable declaration section: this declares the variables, types, cursors, and local stored procedures and functions used in PL/SQLBEGIN--Execution part: process and SQL statement, which is the main part of the programEXCEPTION--Execution Exception section: Exception HandlingEND;--pl/sql Basic specification: all reserved words, roacle built-in functions, packages, and user-defined

ORACLE PL/SQL Instance fine solutions in the third chapter

3.1 using DML in PL/SQLIn the PL/SQL block, the two variables are assigned the value of a. : = Initialize. B. The SELECT INTO syntax, the declaration portion of a PL/SQL block is declared, and later can be assigned using a SELECT statement.3.1.1 Variable initialization using SELECT INTO syntaxSelect A to v_a INSERT into xxx (table) (XA) VALUES (v_a)3.1.2 using DM

PL/SQL 03 Process Control

, whereas a label is used to mark nested blocks or nested loops. By using labels in nested loops, you can distinguish between inner and outer loops, and you can exit the outer loop directly in the inner loop. When writing PL/SQL blocks, you can use the Declareresult int;BeginFor I in 1..100 loopFor j in 1..100 LoopResult:=i*j;Exit outer when result=1000;Exit when result=500;End loop inner;Dbms_output.put_line (result);End loop outer;Dbms_output.put_li

about Oracle PL/SQL

Label:The PL/SQL language is the language that Oracle expands on SQL.1 procedures, functions, triggers are written in PL/SQL2 procedures, functions, triggers are in Oracle3 PL/SQL statements can be called directly in Java Simple Introduction Write a stored procedure in Sql-plus that can add records to a table. First step: Create a tableCREATE TABLE mytest (name v

PL/SQL Exception error handling

placed in the second half of the PL/SQL program body, with the following structure:EXCEPTIONWhen First_exception ThenWhen Second_exception ThenWhen OTHERS and END;Exception handling can be arranged in any order, but others must be placed at the end.③ pre-defined exception handlingTo deal with this anomaly, we simply refer to the exception-handling section of the PL/SQL block, directly reference the corresp

PL/SQL--Package

One, the packageA package is a combination of a set of related procedures, functions, constants, variables, cursors, exceptions, and other PL/SQL programming elements. It is similar to classes in C + + and Java where variables are equivalent to member variables in a class, and procedures and functions are equivalent to methods in a class. By using packages, developers can use the object-oriented approach to develop stored procedures to improve the per

PL/SQL Developer Primary Database connection and window connection switching

Oracle developer estimates are very familiar with PL/SQL developer, and there are some small function points that some beginners have not found. PL/SQL Developer supports multi-connection multiple windows, as detailed below. Concept of the primary connectionOpen PL/SQL developer the login interface, the database connection after successful login is the primar

PL/SQL Developer how to connect a 64-bit Oracle plot

Due to the continuous updating of hardware technology, Win7 system gradually become mainstream, and computer memory gradually increased, in order to make full use of memory resources (because 32 of the system can only use up to 3G of memory), improve system performance, many people began to use the Win7 (64Bit) system. A 64-bit Oracle database is installed on a 64-bit system, but there is no corresponding 64-bit PL/SQL Developer, and it is not possibl

Oracle Daily Practice free to install Oracle clients using PL/SQL

Label:Free installation of Oracle clients using PL/SQLThe Oracle client is annoying, and deploying a connection to it usually requires the client to install it, and the installer requires the registry to be written on the target machine, assuming you're not a neat freak, you could still be stuck with something like this: when other programs on your machine rely on x64 's Oracle program, And they're probably not written by you at all, so you don't have

PL/SQL Basic syntax

Tags: style blog http color io using Java ar StrongSometimes we need to do some slightly more complex operations on the data in the database, and these operations are all one-time and are no longer used after they are exhausted.It is too cumbersome and wasteful to use stored procedures, and to be deleted when it is exhausted. and a single SQL cannot meet the requirements. This is the time to use the SQL statement block.If you are using an Oracle database, you can use

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