In this article, you will learn how display database information in Oracle Database Express Edition. Oracle Database Express Edition is a free, lightweight version of the popular Oracle database management system. Displaying database information is a common task for database administrators and developers, as it allows you to get an overview of the structure and content of the database. Fortunately, in Oracle Database Express Edition, there are several simple and efficient ways to display this information. Below, we will show you some of the most common ways to achieve this.

– Step by step -- How to display database information in Oracle Database Express Edition?

How to display database information in Oracle Database Express Edition?

• Open the SQL Command Line interface: To start displaying database information in Oracle Database Express Edition, open the SQL Command Line interface on your computer.
• Log in: Once the interface is open, log in to your database using your username and password.
• Write the query: After you log in, type the query you want to use to display the information you need from the database. Make sure you use the correct syntax so that the query runs without errors.
• Run the query: Once you have written the query, run it in the SQL Command Line interface. The database will process the query and display the requested information on the screen.
• Check the results: After running the query, review the results displayed on the screen. Make sure the information is what you expected and is displayed accurately.
• Save the query: If you need to use the same query in the future, consider saving it to a file so you can easily access it the next time you need it.

FAQ

Oracle Database Express Edition Frequently Asked Questions

How to connect to database in Oracle Database Express Edition?

1. Open your terminal or command console.
2. Scribe sqlplus and press Enter.
3. Enter your username and password when prompted.

How to display tables in Oracle Database Express Edition?

1. Connect to the database using sqlplus.
2. Scribe SELECT * FROM table_name; and press Enter.

How to view the structure of a table in Oracle Database Express Edition?

1. From sqlplus, type DESCRIBE table_name;
2. Press Enter to see the table structure.

How to display specific database information in Oracle Database Express Edition?

1. Use the statement SELECT specific_columns FROM table_name;
2. Replace “specific_columns” with the columns you want to display and “table_name” with the name of the table.

How to query data from multiple tables in Oracle Database Express Edition?

1. Use the sentence SELECT columns FROM table1, table2 WHERE join_condition;
2. Replace "columns" with the columns you want to get and "table1", "table2" with the names of the tables.

How to run a query with conditions in Oracle Database Express Edition?

1. Use SELECT columns FROM table_name WHERE condition;
2. Replace “columns” with the columns you want to display, “table_name” with the name of the table, and “condition” with the condition you want to apply.

How to display sorted results in Oracle Database Express Edition?

1. Use the sentence SELECT columns FROM table_name ORDER BY column_to_sort;
2. Change “columns” to the columns you want to display, “table_name” to the name of the table, and “column_to_sort” to the column you want to sort the results by.

How to limit the number of rows displayed in Oracle Database Express Edition?

1. Use the statement SELECT columns FROM table_name WHERE condition AND ROWNUM <= number_of_rows;
2. Replace "columns", "table_name", "condition" and "number_of_rows" with your specific values.

How to display unique results in Oracle Database Express Edition?

1. Use the sentence SELECT DISTINCT columns FROM table_name;
2. Change “columns” to the columns you want to display and “table_name” to the name of the table.

How to display current time in Oracle Database Express Edition?

1. Use the function SELECT SYSDATE FROM dual;
2. This query will return the current date and time.

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