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1.What is referential Integrity?
2.What is Foreign Key?
3.What is Transfer Control?
4.What is Free format?
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Answer / manoj
1. Referential integrity maintains the integrity of a
database using key fields. Referential integrity is defined
as "the state of a database in which all values of all
foreign keys are valid"
2.A foreign key is a column or a set of columns in a table
whose values must match at least one primary key or unique
key value of a row in its parent table.
3.
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / syam
This is Free Format in ILERPG
/Free
If
Uokoa<>0;
*In50 =
*On;
Endif;
If Udatu >= Todt And Udatu <=
Date;
If Uaspl <> 29 And Uaspl <> 79 And Uaspl <> 91 And
Uaspl <> 48;
If *In50 =
*off;
ExSr
Proces;
EndIf;
EndIf;
EndIf;
/End-
Free
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / david lex
3. TFRCTL (Transfer Control) is a control language command
which 'hands off' execution to the program listed as the
receiving program.
Once this happens, the original program drops from the call
stack and can not be returned to.
Hence, ANY code following a TFRCTL is wholly skipped,
unless some type of flow control is designed in the program
which could possible skip the TFRCTL.
| Is This Answer Correct ? | 1 Yes | 0 No |
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1.What is referential Integrity? 2.What is Foreign Key? 3.What is Transfer Control? 4.What is Free format?
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