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Today encountered an error prompt: ORA-06502: PL/SQL: numberic or value error: character string buffer too small, the general corresponding Chinese information is: ORA-06502: PL/SQL: incorrect number or value: the string buffer is too small. During the debugging process, we found that the developer defined a variable, but the variable is assigned a value that exceeds its length in the script. The error is r

PL/SQL Developer connects to the Oracle (64Bit) diagram installed on Windows 7. Thanks to the continuous update of hardware technology, Windows 7 has gradually become the mainstream and the computer memory has gradually increased, to make full use of memory resources (because 32 is the system can only use about 3 GB of memory) and improve system performance, many people begin to use Win7 (64Bit) systems. The 64-bit Oracle database is installed on a 64

Win7 has gradually become the mainstream Windows operating system, and its 32-bit and 64-bit systems are equally different. However, no 64-bit PL/SQL developer is available yet. When 32-bit PL/SQL developer is directly used to connect win7 (64-bit) as the server's oracle, such errors always occur. You can find a method that can be used normally through online materials and self-testing. 1. Download the

1. PL/SQL recordsIntroduction: similar to the structure in advanced languages, you can use custom record types, record variables, and % rowtype to define record variables for processing a single row of data. Benefit: You can regard this record set as a class and then define multiple objects of this class. The fields in this class are the fields required for user filtering. then you can directly access these fields on the object. syntax: tyep type_reco

PL/SQL provides three common set union arrays, nested tables, and variable-length arrays, PL/SQL provides corresponding functions or procedures for operation. Element or subscript in the vertical array. These functions or procedures are called set methods. A set method is a function or process built into the set and can operate the set. You can use the vertex flag . This document describes how to operate th

Book Description Oracle PL/SQL recipesIs yourGoBook for PL/SQL programming solutions. it takes a task-oriented approach to PL/SQL programming that lets you quickly look up a specific task and see the pattern for a solution. then it's as simple as modifying the pattern for your specific application and implementing it. and you're done and home for dinner. Orac

I. Case Study A database has two tables about employee information, salary, and department information of a company. They are EMP and dept tables. The structure of the two tables is as follows: The requirements are as follows: 1. Create a corresponding table according to the structure of the table above, and write 5 combination data into each table. 2. The related table is manipulated to increase the salaries of employees in the "Technical Department" by 20%. 3. Create logs to track salary chang

Pl/sql handles exceptions differently from other programming languages, the PL/SQL exception handling mechanism is similar to Ada, with a full inclusion method for handling errors. When an error occurs, the program unconditionally transfers to the exception-handling section, which requires the code to be very clean and separate the error-handling part from the rest of the program. Oracle allows other except

first,. Basic Syntaxthe structure block for PL/SQL is as follows:Declare--declaring variables, types, cursorsBegin--part of the program execution, similar to the Main methodexception--a mechanism for how to deal with exceptions--when ....EndNote that there is no use of the part, there is no need to write, such as the program is really no exception to deal with, then exception will not writerecommended naming methods:Identifier Naming rules ExampleProg

Tags: SQL language Data System Self programming old version png des oafPL/SQL is an integrated development environment for oralcle databases and is the primary tool for many Oracle database developers. Because PL/SQL (Baidu Encyclopedia) is not only a kind of language, but also a process programming language, in the project implementation process, will accumulate a large number of other than stored procedures code. Since there is code, the code must b

Original: PL/SQL Developer how to connect a 64-bit Oracle plotDue 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 n

Tags: Oracle plsql procedure function in out  Pl-sql storage functions and stored proceduresORACLE 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.Procedures and functions are collectively known as PL/SQL subroutines, which are named PL