Why data bus is bidirectional and address bus is
unidirectional?
Answer Posted / ramya
data bus is bidirectional because it transfers information
between peripheral devices and memory register.but,address bus
is unidirectional because it simply recieves information..
| Is This Answer Correct ? | 92 Yes | 16 No |
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hi all, i need ur help in preparing a sql which performs scd2, i mean i have a scd2 mapping i need a sql which can give me same result as scd2 mapping, SRC table: cust_no, loc 01 abc 02 xyz TGT table: pm_ky cust_no loc current_flag 1 01 abc Y 2 02 xyz Y cust 1 has changed his loc to xyz then it loads into TGT table as below, pm_ky cust_no loc current_flag 1 01 abc N 2 02 xyz Y 3 01 xyz Y i need sql to get the above result, hope got me question, Any suggestion will be appreciate.. thanks, Vinod
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