How to verify whether Oracle installation is successful?

How to verify whether Oracle installation is successful? Specific code examples

Oracle database is one of the most widely used relational database management systems in enterprise-level applications. After installing the Oracle database, it is a very important step to verify whether the installation was successful. This article will introduce how to verify whether the Oracle database installation is successful through specific code examples.

1. Confirm whether the database service is started normally

First, we need to ensure that the related services of the Oracle database have been started normally. You can check the status of the database service through the following code example:

# 检查Oracle数据库服务的状态
lsnrctl status

If the returned information shows that the database listening service is running, it means that the database service has been started successfully.

2. Connect to the database instance

Next, we can try to connect to the Oracle database instance. You can use the sqlplus command line tool to connect to the database instance. The specific code example is as follows:

# 使用sqlplus连接到数据库实例
sqlplus / as sysdba

If the database instance is successfully connected and no error message appears, the database installation is successful.

3. Create a test table

In order to further verify the normal operation of the database, we can create a simple test table. You can create a test table named test_table through the following code example:

-- 创建一个测试表
CREATE TABLE test_table (
    id NUMBER,
    name VARCHAR2(50)
);

If the test table is successfully created and no error prompts appear, it means that the database is installed successfully and can run normally.

4. Insert test data

Finally, we can try to insert some data into the test table to verify the writing function of the database. You can insert a piece of test data into the test_table table through the following code example:

-- 向测试表插入一条数据
INSERT INTO test_table (id, name) VALUES (1, 'Test Data');

If the test data is successfully inserted without any error prompts, it means that the database is installed successfully and read and write operations can be performed normally.

Through the above steps, we can verify whether the Oracle database installation is successful through specific code examples. By checking the database service status, connecting to the database instance, creating test tables and inserting test data, we can confirm that the Oracle database has been successfully installed and can run normally. Good luck with your use of Oracle databases!

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