Informix installation and use

Informix is a relational Database management system (RDBMS). The installation and use process are as follows: Installation process: 1. Download the Informix software package and double-click to run the installation program. 2. According to the installation wizard prompts, select the installation path and component installation options. You can choose between full installation or custom installation. 3. Set the database server instance name and administrator account password. 4. Complete the installation. Create a data table: 1. Open the Informix Command-line interface or use graphical interface tools (such as Informix SQL Explorer) to connect to the database server. 2. On the command line or SQL editor, use the CREATE TABLE statement to create a data table, specifying the table name, columns, and their data types. For example: CREATE TABLE employees ( id INT PRIMARY KEY, name VARCHAR(50), age INT, department VARCHAR(50) ); Data insertion: 1. Use the Insert INTO statement to insert data into the created table. For example: INSERT INTO employees (id, name, age, department) VALUES (1, 'John Smith', 30, 'IT'); INSERT INTO employees (id, name, age, department) VALUES (2, 'Jane Doe', 35, 'Marketing'); Data modification: 1. Use the UPDATE statement to modify the data in the table. For example: UPDATE employees SET age = 31 WHERE id = 1; Data Query: 1. Use the SELECT statement to query the data in the table. For example: SELECT * FROM employees; SELECT name, age FROM employees WHERE department = 'IT'; Data deletion: 1. Use the DELETE statement to delete data from the table. For example: DELETE FROM employees WHERE id = 2; Please note that the above examples are for demonstration purposes only, and the statements and data need to be adjusted according to the specific situation during actual use.