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Tags: basic syntax structure PL/SQL1. Branching structureIn PL/SQL, the IF keyword is used as the starting segment of the program for the point structure.There are several branching structures in general:1) If Condition then statement end if;2) If Condition then statementElse then statementEnd If;3) If Condition then statementelsif condition Then statement...Else then statementEnd If;The structure correspon

Pl/SQL 9.2 cannot connect to the oracle database. When oracle 11 GB is installed on the system and oracle 10 Gb is installed on the client, when pl/SQL is used to connect to the database, the connection fails. The reason is that the oracle home directory specified by pl/SQL is the default 10 Gb directory. Therefore, you need to modify the oracle home Directory va

To put it a little bit, plsqldeveloper needs to install the local oracle client to connect to remote oracle before using the client configuration. Because the client is very busy To put it a little bit, pl/SQL developer needs to install the local oracle client to connect to remote oracle before using the client configuration. Because the client is very busy To put it a little bit, pl/SQL developer need

PL/SQL 9.2 cannot connect to the Oracle database. When the system is installed with Oacle 11 GB and the client is installed with Oacle 10 Gb, when pl/SQL is used to connect to the database, the connection fails. The reason is that the oracle home directory specified by pl/SQL is the default 10 Gb directory. Therefore, you need to modify the oracle home Directory

Boolean is a type of PL/SQL data. Logical values are true and false. Only logical operators can be applied to boolean variables. The Database SQL type does not support BooleanType. Only PL/SQL is supported. Therefore, you cannot insert or retrieve boolean values in the database. The following describes the Declaration and value assignment of the Boolean Type and how to output the boolean type. 1. boolean d

Solution for PL/SQL Developer in Windows 8 64-bit + Oracle 12c 64-bit, window812c1) install Oracle 12c 64-bit2) install a 32-bit Oracle client (instantclient-basic-nt-12.1.0.1.0.zip)Download instantclient-basic-win32-11.2.0.1.0.zip, must be win32 version, Oracle official website has download, unzip it to the Oracle Installation Directory of the Product: D: \ oracle \ product \ instantclient_12_1.Copy the NETWORK \ ADMIN \ tnsnames. ora file to the Dir

1. Cursor Concept A swimming cursor is a handle or pointer to a context area. When you perform a crud operation in a pl/sql block, Oracle assigns the context area to it in memory. Using the database language to describe a cursor is a position entity that maps on a row of data in the context area result set. A user can use a cursor to access any row of data in the result set, and the row data is manipulated after the cursor is pointed to a row. Curs

The Oracle tutorial you are looking at is the Oracle Pl/sql introductory case practice. We have already learned the basics of pl/sql programming, and this article will combine a case to deepen understanding of these knowledge points. A Case Introduction A database has two tables that are about a company's employee information, salary, and departmental information, each of which is an EMP table and a Dept

Because of the reasons for the project need to use the Oracle database, due to time constraints can not learn from the foundation, and the Oracle operation of the command interface is too unfriendly, so I found Pl/sql developer this very useful software to indirectly use the database. Here's a brief description of how to use this software to connect to Oracle databases. The first step is to install Oracle database and

Win7 gradually became the current mainstream Windows operating system, with its 32 and 64-bit systems evenly tied. However, there is no 64-bit pl/sql developer come out, directly with 32-bit Pl/sql developer Connection Win7 (64-bit) as Oracle of the server, there is always such a mistake, through online data and their own testing, Find a way to work properly. 1. Download Oracle Client (http://www.oracle.co

Tags: custom var open cut Fundamentals Condition Create SQ nbspHave a chat, don't abandon (cover your face)PL/SQL is an extension of Oracle 's process language and structured Query language, and is an object-oriented query languagehas the following advantages : The characteristics of programming language, the use of procedural language control program structure, exception handling mechanism, better portability, reduce network interaction, improve the

If you need to run SQL statements in Sqlplus, or if you want to count the run time, you only need to turn on the set timing on option.Sql> Set Timing onSql>Sql> Select COUNT (*) from cat;COUNT (*)----------408elapsed:00:00:00.15If you need to calculate the time that the program runs when you run PL/SQL. Using set timing on is a weakness. This time you can consider using Dbms_utility.get_time to get a timestamp, and then get a timestamp after the progr

PL/SQL is an abbreviation for Procedure Language structured Query LanguagePL/SQL is an extension of the language stored procedureThe PL/SQL program consists of three blocks, the declaration part , the execution part , and the exception handling part .In the declaration section of a statement block, a variable declaration is declared, and the syntax for declaring a variable is:variable_name [constant] type

PL/SQL Developer Import and Export database method and illustrate how well does you KNOW the APPLE UNIVERSE?In, Apple became the first company worth how much?Which religion did Steve Jobs practice?What is one of the Apple protects its secrecy?In 1981, "Woz" is in a plane crash and suffered which effect?Why does Steve Jobs leave his job designing video games at Atari?Who is Apple's second biggest, after the states?What is Tim Cook ' s position before h

Tags: address add basic exit loop format syntax border rom I. What is PL/SQL (Procedure language/sql)Concept: Plsql is Oracle's procedural extension of SQL languageRefers to the addition of process-processing statements (such as branching, loops, and so on) in the SQL command language, enabling the SQL language to have process processing power.The structure of PL/sql: declare 说明部分 （变量说明，光标申明，例外说明 〕

what is PL/SQL? PL/SQL (procedural language/sql) is an extension of Oracle's on-the-loop, which allows you to define constants and variables, allows you to use conditional and circular statements, and allows you to use exceptions to handle various errors. This makes it a very powerful feature. But transplant is not good.1. Instance 1 includes only the PL/SQL bloc

Tags: plsql dateUsing date types in PL/SQL The previous article described the use of strings and numbers in PL/SQL. There is no doubt that strings and numbers are important, but you can be sure that no application is dependent on the date.You need to record events, people's date of birth and many more. The usual way to use this is: 1) Declaring date variables and constants 2) Use the built-in function to di

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 a random order, but the others must be placed at the end.③ pre-defined exception handlingFor such exception processing, only in the PL/SQL block exception handling section, directly refer to the corresponding exception

Label:First, Variable introductionWhen you write a PL/SQL program, you can define variables and constants, including the following in the PL/SQL program:1), scalar type (scalar)2), composite type (composite) --for manipulating individual records3), reference type (Reference) --for manipulating multiple records4), LOB (large object) Scalars (scalar)--Common types1), when writing

Variable introduction when writing a PL/SQL program, you can define variables and constants, including: 1 in a PL/SQL program, scalar type (scalar) 2), composite type (composite)--for manipulating a single record 3), reference type (reference)-- Used to manipulate multiple records 4), LOB (large object) two, scalar (scalar)-common type 1), when writing PL/SQL blo