How to retrieve data from a database table?

To query the content of a table, you can use the SELECT statement in SQL. The specific steps are as follows:

1. Open a database management tool such as MySQL Workbench or SQL Server Management Studio.
2. Connect to the target database.
3. Choose the tables in the target database, or use the USE statement to select the target database.
4. Write SQL query statements to query the content of the table using the SELECT statement. The syntax is as follows: SELECT column1, column2, … FROM table_name [WHERE condition] Where column is the column to be queried, * can be used to represent all columns; table_name is the name of the table to be queried; WHERE is optional and is used to specify query conditions.
5. To execute an SQL query, you can typically click the execute button or use a shortcut key to run it.
6. View the query results, which will be displayed in a table format in the database management tool.

By following the steps above, you can now access the contents of the table.