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PL/SQL Developer is the main tool used to import or export databases in Oracle databases. This article mainly introduces the process of using PL/SQL Developer to import and export databases, some precautions for import or export are described. Next we will introduce them one by one. Export Steps:1 tools-> export user o

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,

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

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

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

Tags: variable int var rom tag blog Select str EnterCreate a PL/SQL block to calculate the compensation amount for one year. Requirements 2 Pass the annual payroll and annual bonus ratios to PL/SQL blocks by using an *plus substitution variable The 2 bonus ratio is an integer that is converted to a decimal form in the

PL/SQL Developer usage tips, shortcut keys1, set the keyword automatic capitalization: tools->preferences->editor, will keyword case select uppercase. When you enter SQL statements in a window, the keywords are automatically capitalized, and the others are lowercase. This is easy to read code, and to maintain a good coding style, in the same way, in Tools->prefer

This article describes how to set the shortcut keys for PLSQL in Oracle databases, including setting MyObjects, remembering the password, and double-clicking the display table by default. This article describes how to set the shortcut keys for PL/SQL in Oracle databases, including setting My Objects, remembering the password, and double-clicking the display table by default. This article describes how

The flow control statements in the PL/SQL program draw on the process control ideas of many high-level languages, but have their own characteristics. Condition control The following example describes the use of conditional control statements. 1. If.. Then.. End If condition control Use If.. Then.. The End If condition controls the syntax structure as shown in Figure 9.15. Execute the following

I. Related content1. Master the structure of PL/SQL program block, understand and familiar with the application of various variables.Second, the specific operation(i) using the system user login Sql*plus, create a user using the SQL statement: U_ your initials (for example: U_zs), the password is: T_ your number three

(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