pply OS : Windows, Mac, Linux Apply Navicat Product : Navicat for Oracle, Navicat Premium Apply Navicat Version No. : All Instant Client package is required for Basic and TNS connection type. To download Instant Client package (Instant Cli
pply OS : Windows, Mac, Linux
Apply Navicat Product : Navicat for Oracle, Navicat Premium
Apply Navicat Version No. : All
Instant Client package is required for Basic and TNS connection type. To download Instant Client package (Instant Client Package - Basic), please go to http://www.oracle.com/technetwork/database/features/instant-client/index-097480.html
Note: Navicat version 9 or above, instant client is bundled in Navicat.
Connection Type
BasicIn Basic mode, Navicat Oracle connects to Oracle through the Oracle Call Interface (OCI). OCI is an application programming interface that allows an application developer to use a third-generation language's native procedure or function calls to access the Oracle database server and control all phases of SQL statement execution. OCI is a library of standard database access and retrieval functions in the form of a dynamic-link library.
TNS
In TNS mode, Navicat Oracle connects to Oracle server using an alias entry from a tnsnames.ora file.
Windows
Installation Instructions
Note: Navicat version 10 or below, Navicat only support 32-bit instant client.
Download the appropriate Instant Client packages for your platform. All installations REQUIRE the Basic or Basic Lite package.Note:
For Oracle 9i or above, you need Instant Client 11 or below
For Oracle 8 and 8i server, you need Instant Client 10 or below

Unzip the packages into a single directory such as "C:\instantclient_11_1".

In Options -> OCI, choose the oci.dll in the directory you defined in Step 2 ("C:\instantclient_11_1\oci.dll").

Restart Navicat.
Mac
Installation Instructions
Note: Navicat version 10 or below, Navicat only support 32-bit instant client.
Download the appropriate Instant Client packages for your platform. All installations REQUIRE the Basic or Basic Lite package.Hint:
- MAC OSX any versions running on PPC cpu should use PPC Navicat and PPC Instant Client.
- MAC OSX 10.4 or below running on INTEL cpu should use PPC Navicat and PPC Instant Client.
- MAC OSX 10.5 up running on INTEL cpu should use X86 Navicat and x86 Instant Client.
- Just simply unzip the packages and copy all files under /usr/lib or ~/lib. (Copy all files under /usr/lib for Mac OS X 10.3, otherwise, copy all files under /usr/lib or ~/lib for Mac OS X 10.4 or above.)
Tips: Besides, you can place the instant client in anywhere you like and then specify the path in Preference.
Linux
Installation Instructions
Download Instant Client packages for Microsoft Windows (32-bit). All installations REQUIRE the Basic or Basic Lite package.Note:
For Oracle 9i or above, you need Instant Client 11 or below
For Oracle 8 and 8i server, you need Instant Client 10 or below

Unzip the packages into a single directory such as "/home/test/instantclient_11_1".

In Options -> OCI, choose the oci.dll in the directory you defined in Step 2 ("/home/test/instantclient_11_1").

Restart Navicat. 1、原因:
ORA-12737: Instant Client Light: unsupported server character set CHS16GBK
Google,解释如下:
ORA-12737:
Instant Client Light: unsupported server character set string
Cause: The character set specified is not allowed for this operation or is invalid. Instant Client Light has only minimal character sets.
Action: Do not use Instant Client Light for this character set
2、首先,我们打开“tools”-->"options"菜单,见到如下界面,依据OCI library(oci.dll) 路径,导航到 navicat oci 目录下,备份里面的文件(通过在该目录新建bak文件夹,将“%dir%/Navicat Lite\instantclient_10_2”路径下的所有dll文件剪切到bak文件夹)。

3、在oracle 客户端安装目录bin/目录下,找到如下几个.dll文件

4、将上面所列文件放置到“%dir%/Navicat Lite\instantclient_10_2” 目录下,重新启动navcat即可。

The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

The steps to build a MySQL database include: 1. Create a database and table, 2. Insert data, and 3. Conduct queries. First, use the CREATEDATABASE and CREATETABLE statements to create the database and table, then use the INSERTINTO statement to insert the data, and finally use the SELECT statement to query the data.

MySQL is suitable for beginners because it is easy to use and powerful. 1.MySQL is a relational database, and uses SQL for CRUD operations. 2. It is simple to install and requires the root user password to be configured. 3. Use INSERT, UPDATE, DELETE, and SELECT to perform data operations. 4. ORDERBY, WHERE and JOIN can be used for complex queries. 5. Debugging requires checking the syntax and use EXPLAIN to analyze the query. 6. Optimization suggestions include using indexes, choosing the right data type and good programming habits.

MySQL is suitable for beginners because: 1) easy to install and configure, 2) rich learning resources, 3) intuitive SQL syntax, 4) powerful tool support. Nevertheless, beginners need to overcome challenges such as database design, query optimization, security management, and data backup.

Yes,SQLisaprogramminglanguagespecializedfordatamanagement.1)It'sdeclarative,focusingonwhattoachieveratherthanhow.2)SQLisessentialforquerying,inserting,updating,anddeletingdatainrelationaldatabases.3)Whileuser-friendly,itrequiresoptimizationtoavoidper

ACID attributes include atomicity, consistency, isolation and durability, and are the cornerstone of database design. 1. Atomicity ensures that the transaction is either completely successful or completely failed. 2. Consistency ensures that the database remains consistent before and after a transaction. 3. Isolation ensures that transactions do not interfere with each other. 4. Persistence ensures that data is permanently saved after transaction submission.

MySQL is not only a database management system (DBMS) but also closely related to programming languages. 1) As a DBMS, MySQL is used to store, organize and retrieve data, and optimizing indexes can improve query performance. 2) Combining SQL with programming languages, embedded in Python, using ORM tools such as SQLAlchemy can simplify operations. 3) Performance optimization includes indexing, querying, caching, library and table division and transaction management.

MySQL uses SQL commands to manage data. 1. Basic commands include SELECT, INSERT, UPDATE and DELETE. 2. Advanced usage involves JOIN, subquery and aggregate functions. 3. Common errors include syntax, logic and performance issues. 4. Optimization tips include using indexes, avoiding SELECT* and using LIMIT.


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