HOW SHALL WE DIFFERENTIATE BETWEEN PRIMARY KEY AND FORIEGN
KEY?
- 4 Answers
- 8259 Views
- I also Faced
- E-Mail Answers
Answer Posted / manoj byregowda
Primary key- A column (or columns)in a table which makes every row in table unique. eg - EMPLOYEE table, EMPID is column which is unique.
Foreign Key - A column (or columns) in table Whose value References to primary key of another table OR ( A column which derives its value from another tables primary key.)
eg - EMP table EMPID is PK and DEPTNO is FK.
DEPT table DEPTID is pk.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Differentiate between standard remittance and bills receivable remittance : oracle accounts receivable
what are the types of LIST REPORTS in cognos8BI? and what is the mean and use of METRIC STUDIO in Cognos 8.3BI?
How would you go about increasing the buffer cache hit ratio?
types of receipts and detail desription about recipts and tables effected by receipts?
How I can load an image into image item on Forms. I want to know about built-ins and procedure. and also code for it.
QUESTION IS THAT DURING UPLOADING DATA IN PROD SERVER,OUR EQUIPMENT TAG NUMBERS ARE NOT MATCHING WITH SAP TAG NUMBERS SO DUE TO THIS WE ARE FACING PROB, BECAUSE WHENEVER ALARM IS COMING FROM SCADA DUE MISMATCH THE NOTIFICATION IS NOT CREATED IT IS GIVING ERROR. PLEASE SUGGEST THE METHOD SO THAT THE TAG NUMBERS OF BOTH (SCADA EQUIPMENT AND SAP EQUIP) SHOULD CONCIDE.OTHERWISE WE HAVE TO GO FOR LONG PROCESS EITHER BY INTERFACE TABLE OR BY EXPORTING ALL DATA AND MAKING RIGHT CHANGES.DO YOU HAVE ANY SHORTCT METHOD PL WRITE ME. THANKS
3. Steps in UAT?
WHAT ALL DIFFERENT KIND OF FUNCTIONS AVAILABLE WHILE DESIGN UNIVERSES?
Differentiate between transaction type and transaction source? : oracle accounts receivable
HOW TO GET THE ORGANIZATION TO ORGANIZATION DETAILS INFORMATION IN THE INVENTORY MODULE.THE REQUIREMENT IS FROMORG TOORG FROMINV TOINV ..
What is auto accounting what are the steps for setting up auto accounting? : oracle accounts receivable
Explain how to close periods in ar. : oracle accounts receivable
which gives Oracle R12 Financial training in delhi please give me answer its urgent?
Where in the Oracle directory tree structure are audit traces placed?
what are the interface and api table for receipts conversion in oracle receivables? : oracle accounts receivable
