Create Internal Database

To create a new internal database, call the New command. In the appeared Database Properties window, specify the name of the new database (mandatory), comment (optional) aand background color (optional), as described in the Create Database section.

After pressing ОК the Database Properties window will close. The system automatically transfers to the database table creation mode. The dialog window for specifying parameters of the first column of the created database will appear on the screen:

Name. Defines the name, by which the access to the values of a database will be carried out.  A field is identified by its name. The length of the field name should not be greater than 10 characters. The field name can be an arbitrary string of letters, numbers and the underline sign ( _ ). The string should begin with a letter. All field names within one database should be unique.

Comments. Explanatory text for the column of length of no more than 80 symbols.

Type. Defines the information representation format for the given column. Columns can be of one of the following types:

•Integer. In this column you can input only integers. The range is from −32768 to 32767 (16-digit sign integer);

•Real. In this column you can input only real numbers. Admissible range is from −3.4 ×1038 to +3.4 ×1038 (7 digits);

•Text. In this column it is possible input any text information;

•Double precision. Real number in the range from  ±5.0 ×10−324 to ±1.7 ×10308 (15−16 digits);

•Long Integer. Integers in the range between −2147483648 and 2147483647 (32-digit sign integer).

Length. Defines the maximum admissible number of symbols when entering and editing the value in a column of the textual type.

Alignment. This parameter defines the way of displaying the values in a column: with alignment by the left margin of the column, right margin or the center.

Order number. Shows order number of chosen column in database.

If the Create Next flag is selected, after entering the values and pressing ОК, the column’s properties dialog will appear again which will allow us to specify parameters of the next column, etc. If the flag is disabled, after closing the dialog window the system will transfer to the mode of filling in the database.