Microsoft Access Diseño y manejo de tablas

Transcripción

1 Microsoft Access 2010 Diseño y manejo de tablas

2 Crear una base de datos nueva

3 De la base de datos seleccione el listado de objetos

4 Crear una tabla vacia

5 En Create presione Table, aparece tabla en Datasheet View

6 En Datasheet View se puede comenzar a entrar datos sobre el tema

7 Presione Save para guardar la tabla y asignarle un nombre

8 Trabajar desde Design View

9 Tabla en Design View muestra panel para crear campos y sus propiedades

10 Seleccione Data Type a cada campo de la tabla

11 Data Types Data Type Text When to Use To enter text, phone numbers, or zip codes. Memo To enter large amount of text; up to 65,536. Number Currency AutoNumber Date/Time OLE Object Hyperlink Yes/No Attachment Calculated To add numbers and decimals. To display numbers as currencies. To have Access automatically number each record. To include date or time in a cell. To embed other objects such as graphics, or documents. To link to websites or link to intranet sites. To store one of two values such as a Yes or No, Correct or Incorrect. To attach files to a record such as spreadsheets, graphics, documents and more. To enter a formula and display the results of the calculations.

12 Desde Datasheet View tambien puede seleccionar el Data Type

13 Buena practica de diseño describir los campos y añadir Input Mask

14 Crear Input Mask o mascaras Character Explanation 0 User must enter a digit (0 to 9). 9 User can enter a digit (0 to 9). # L User can enter a digit, space, plus or minus sign. If skipped, Access enters a blank space. User must enter a letter.? User can enter a letter. A a User must enter a letter or a digit. User can enter a letter or a digit. & C., : ; - / User must enter either a character or a space. User can enter characters or spaces. Decimal and thousands placeholders, date and time separators. The character you select depends on your Microsoft Windows regional settings. > Coverts all characters that follow to uppercase. < Converts all characters that follow to lowercase.! Causes the input mask to fill from left to right instead of from right to left. \ Characters immediately following will be displayed literally. "" Characters enclosed in double quotation marks will be displayed literally.

15 This input mask Provides this type of value Notes (000) (206) (999) ! (206) ( ) (000) AAA-AAAA (206) 555-TELE #999 Ejemplos de mascaras o Input Masks In this case, you must must enter an area code because that section of the mask (000, enclosed in parentheses) uses the 0 placeholder. In this case, the area code section uses the 9 placeholder, so area codes are optional. Also, the exclamation point (!) causes the mask to fill in from left to right. Allows you to substitute the last four digits of a U.S. style phone number with letters. Note the use of the 0 placeholder in the area code section, which makes the area code mandatory. Any positive or negative number, no more than four characters, and with no thousands separator or decimal places. >L????L?000L0 GREENGR339M3 MAY R 452B7 A combination of mandatory (L) and optional (?) letters and mandatory numbers (0). The greater-than sign forces users to enter all letters in uppercase. To use an input mask of this type, you must set the data type for the table field to Text or Memo >L<?????????????? Maria Pierre ISBN 0-&&&&&&&&&-0 ISBN A mandatory postal code and an optional plus-four section. A first or last name with the first letter automatically capitalized. A book number with the literal text, mandatory first and last digits, and any combination of letters and characters between those digits. >LL DB A combination of mandatory letters and characters, all uppercase. Use this type of input mask, for example, to help users enter part numbers or other forms of inventory correctly.

16 Guardar trabajo según vaya desarrollando su base de datos

17 Probar que los campos cumplen con las reglas o Test Validation Rule

18 Al crear una tabla nueva, debe entrar todos los campos de la tabla

19 Referencias en español sobre las propiedades de los campos HA aspx?CTT=1

20 Al crear tabla nueva sin Primary Key sale un aviso o ventana de dialogo

21 Crear un campo Lookup, seleccionar el tipo en Data Type

22 Asistente o Lookup Wizard, seleccionar buscar dato en otra tabla

23 Seleccionar tabla o query donde se encuentra el dato

24 Seleccione el campo deseado de la tabla

25 Seleccione el orden en que se presentaran los datos

26 Asignar etiqueta o nombre al campo tipo Lookup

27 Uso de campo tipo Lookup con listado de valores

28 Importar datos a la base de datos, seleccione External Data

29 Seleccione el archivo que desea importar a la base de datos

30 Preguntas