Chapter 17 - Revision history

Laura: /* Quick Quiz 17.1 */

2014-06-04T17:22:30Z

Quick Quiz 17.1

← Older revision		Revision as of 17:22, 4 June 2014
Line 25:		Line 25:

	====Quick Quiz 17.1====		====Quick Quiz 17.1====
	For each item listed below, indicate where they can be used by ~~circling~~ display, internal or both.		For each item listed below, indicate where they can be used by choosing display, internal or both.

	1. Display Internal Both Can be opened KEYED <br>		1. Display Internal Both Can be opened KEYED <br>

Laura: /* 17.1 What’s the difference between display and internal files? */

2014-06-04T17:22:08Z

17.1 What’s the difference between display and internal files?

← Older revision		Revision as of 17:22, 4 June 2014
Line 17:		Line 17:

	===17.1 What’s the difference between display and internal files?===		===17.1 What’s the difference between display and internal files?===
	~~This section will summarize the major differences between display files and internal files.~~

	Display and internal files differ both in their capabilities and in the rules for using them. Later sections in this chapter will focus on the rules for display file processing, and this section will focus on differences in capabilities. Many of these differences will appear to be advantages for internal files.		Display and internal files differ both in their capabilities and in the rules for using them. Later sections in this chapter will focus on the rules for display file processing, and this section will focus on differences in capabilities. Many of these differences will appear to be advantages for internal files.

Laura: /* 17.2 Using the OPEN statement for an existing display file. */

2014-05-28T22:59:50Z

17.2 Using the OPEN statement for an existing display file.

← Older revision		Revision as of 22:59, 28 May 2014
Line 44:		Line 44:
	In the chapters on internal files, several arbitrary conventions for file extensions were introduced. For display files, the arbitrary choice will be that display files will have the extension .TXT -- unless some other convention is clearer (such as .BRS for a source program).		In the chapters on internal files, several arbitrary conventions for file extensions were introduced. For display files, the arbitrary choice will be that display files will have the extension .TXT -- unless some other convention is clearer (such as .BRS for a source program).

	Output to a display file can be directed to the screen, the printer, or a file (either on hard disk , usb or other location). This selection is made with the file number. In the chapters on internal files, it was stressed that a file must be opened before any input or output could take place. For display files, there are two exceptions to this rule: one for the screen, and one for the printer. Business Rules! includes two pre-defined file numbers:		Output to a display file can be directed to the screen, the printer, or a file (either on hard disk, usb or other location). This selection is made with the file number. In the chapters on internal files, it was stressed that a file must be opened before any input or output could take place. For display files, there are two exceptions to this rule: one for the screen, and one for the printer. Business Rules! includes two pre-defined file numbers:

	255 defaults to the printer (with PRINT), and <br>		255 defaults to the printer (with PRINT), and <br>

Laura: /* Quick Quiz 17.5 */

2013-08-16T17:22:19Z

Quick Quiz 17.5

← Older revision		Revision as of 17:22, 16 August 2013
Line 263:		Line 263:


	NEXT:[[Chapter 18]]		NEXT:[[Chapter 18\|Error Handling and Recovery]]

	[[BR Tutorial\|Back to Index]]		[[BR Tutorial\|Back to Index]]

Laura at 01:19, 16 July 2013

2013-07-16T01:19:25Z

← Older revision		Revision as of 01:19, 16 July 2013
Line 268:		Line 268:

	<noinclude>		<noinclude>
	[[Category:Tutorial]]		[[Category:Tutorial 1]]
	</noinclude>		</noinclude>

Laura: /* Quick Quiz 17.5 */

2013-07-15T21:06:01Z

Quick Quiz 17.5

← Older revision		Revision as of 21:06, 15 July 2013
Line 266:		Line 266:

	[[BR Tutorial\|Back to Index]]		[[BR Tutorial\|Back to Index]]

			<noinclude>
			[[Category:Tutorial]]
			</noinclude>

Laura: /* Quick Quiz 17.5 */

2013-07-03T22:56:38Z

Quick Quiz 17.5

← Older revision		Revision as of 22:56, 3 July 2013
Line 260:		Line 260:
	5. Strings read from a display file using the LINPUT statement may include commas and other punctuation marks as well as leading blanks.		5. Strings read from a display file using the LINPUT statement may include commas and other punctuation marks as well as leading blanks.

	Answers: <br>		[[Answers 17.5]] <br>
	~~1-F, 2-T, 3-T, 4-F, 5-T~~

	NEXT:[[Chapter 18]]		NEXT:[[Chapter 18]]

	[[BR Tutorial\|Back to Index]]		[[BR Tutorial\|Back to Index]]

Laura: /* Quick Quiz 17.4 */

2013-07-03T22:56:14Z

Quick Quiz 17.4

← Older revision		Revision as of 22:56, 3 July 2013
Line 195:		Line 195:
	3. PRINT #0:”HI” and PRINT “HI” would both produce identical output to the screen.		3. PRINT #0:”HI” and PRINT “HI” would both produce identical output to the screen.

	Answers: <br>		[[Answers 17.4]] <br>
	~~1-F, 2-T, 3-T.~~

	===17.5 Using display files for input.===		===17.5 Using display files for input.===

Laura: /* Quick Quiz 17.3 */

2013-07-03T22:55:51Z

Quick Quiz 17.3

← Older revision		Revision as of 22:55, 3 July 2013
Line 165:		Line 165:
	3. The PAGEOFLOW= clause is used to help set up top and bottom margins for printed reports.		3. The PAGEOFLOW= clause is used to help set up top and bottom margins for printed reports.

	Answers: <br>		[[Answers 17.3]] <br>
	~~1-T, 2-T, 3-F.~~

	===17.4 Using display files for output.===		===17.4 Using display files for output.===

Laura: /* Quick Quiz 17.2 */

2013-07-03T22:55:14Z

Quick Quiz 17.2

← Older revision		Revision as of 22:55, 3 July 2013
Line 80:		Line 80:
	5. The keywords EXTERNAL, INTERNAL, OUTIN, RELATIVE, and KEYED can not be used in the OPEN statement for a display file.		5. The keywords EXTERNAL, INTERNAL, OUTIN, RELATIVE, and KEYED can not be used in the OPEN statement for a display file.

	Answers: <br>		[[Answers 17.2]] <br>
	~~1-F, 2-T, 3-T, 4-F, 5-T.~~

	===17.3 Using the OPEN statement to create a new display file.===		===17.3 Using the OPEN statement to create a new display file.===