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Ubuntu 14.04 Build php5+apache2+oracle Environment A recently developed project that uses Oracle for databases. Oracle itself supports Red Hat, and the support for Ubuntu is not good, and if Ubuntu needs to install Oracle, the system itself needs to
1. Define (that is, host variable)The main role of the host variable is to act as an alternative variable, a medium in which the host environment can interact with Oracle . When you define a host variable by define, you must specify the variable
Oracle
How to install and run Oracle on your Linux machine start action
It can be pretty easy to install Oracle on Redhat, but if you follow Oracle company completely
Documentation is not always easy to walk through. The quickest shortcut is Tom
Supported commands
Besides all SQL statements, the command window supports the following standard SQL * Plus commands in this release:
Command
Meaning
/
Executes the SQL Buffer
? [Keyword]
Provides SQL help on
Reproduced from: https://wenku.baidu.com/view/cfa4e185fd0a79563c1e72a0.html
1. Oracle differs from SQL Server 2005. On the macro level:1. The biggest difference is that the platform, Oracle can run on different platforms, SQL Server can only run on
Sql*plus environment can be set by login.sql or Glogin.sql script, may be a lot of beginners or not accustomed to the use of Sql*plus veteran do not know. Because in today's UI tools (Toad, PL/SQL Developer. In the age of Sql*plus, this command tool
PLSQL variables can be of the following four types:
-Scalar)
-Composite)
-Reference)
-Lob type (large object)
1. scalar type:-Only variables with a single value can be stored.-When defining a scalar, you must specify the data type.
1.1 common
From: http://www.oracle.com/technetwork/cn/articles/dsl/prez-python-queries-101587-zhs.html
In the core principles of Python's way of doing things, there is a requirement to have an advanced interface to the API. The database API (in this case, the
The variable for PL/sql:Variable type:1. Common simple variable types built into the system: for example, most database tables have field types that can be used as variable types;2. User-defined complex variable types: such as record type;3.
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