下一步是构建表。同样，构建表的过程也不是唯一的，但最终结果是唯一的。您

The next step is to build the table. Similarly, the process of building a table is not unique, but the end result is unique. You can build a table with access rights, or by building the table in the Delphi main program, or by visualizing PowerDesigner, and disconnecting when importing the database, otherwise the data in the database is easy to lose. When building a table, we should pay attention to standardized naming rules, such as the field name of the table, we will also pay attention to the blank length of the table field, because we will design the primary key and foreign key in the future. If the field names are different and the length of the same field is different, the primary key and foreign key are not connected. As you can see, global variables should be considered when building the table. In the early days of program development, I made the same mistake that caused the database error, sometimes adding new fields to the table, causing the chained reflection of the data window to not work

The next step is to build the table. Similarly, the process of building a table is not unique, but the end result is unique. You can build a table with access, either by building a table in the Delphi master program, or by building a table through a visual PowerDesigner, and disconnecting when you import a database, otherwise the data in the database is easily lost. When building a table, pay attention to normalized naming rules, such as the field name of the table, and we will also pay attention to the blank length of the table field, because we will design primary and foreign keys in the future. If the field name is different and the length of the same field is different, the primary and foreign keys are not connected. As you can see, you should consider global variables when building tables. Early in program development, I made the same error that caused the database error, sometimes adding new fields to the table, causing the chain reaction of the data window to fail to work.

The next step is to build the table. Similarly, the process of building tables is not unique, but the end result is unique. You can build tables with access rights, or build tables in Delphi main program, or build tables through visual PowerDesigner, and disconnect when importing database, otherwise the data in database is easy to be lost. When building the table, we should pay attention to the standardized naming rules, such as the field name of the table. We will also pay attention to the blank length of the table field, because we will design the primary key and foreign key in the future. If the field names are different and the length of the same field is different, the primary key and foreign key are not connected. As you can see, global variables should be considered when building tables. In the early days of program development, I made the same mistakes that led to database errors, sometimes adding new fields to the table, causing the cascading reflection of the data window to not work<br>