What are different types of raid configurations? : SQL Server Architecture
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Answer Posted / Ravi Bharti
"RAID (Redundant Array of Inexpensive Disks) is a method of storing data across multiple disks for fault tolerance and performance. There are several types of RAID configurations, including RAID 0, 1, 5, 6, 10, and others. Each configuration offers different levels of redundancy, data striping, and parity."
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This question asked during interview, 2) At the end of each month, a new table is created for each bank that contains monthly metrics consolidated at the account level. The table naming convention is bankX_YYYYMM where X represents the numeric designation of the bank and YYYYMM indicates the 4 digit year and 2 digit month. The tables contain the following fields: name data type description account text account number registered boolean indicates whether the account is registered num_trans integer number of transactions made during the time period spend numeric(9,2) total spend during the time period a) Write a SQL query that will display the total number of transactions and total spend for "Bank1" during the 4th quarter of 2009. b) Write a SQL query that will display the total number of transactions and total spend at "Bank1" and "Bank2", broken out by registered vs. non-registered accounts, during January 2010 not sure what is correct answer and how to solve?
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