ANSI transaction isolation level: Transaction isolation levels indicate the degree of the transaction which specifies protected or isolated transactions from other concurrent transactions. The ANSI SQL standard defines transaction management based on transaction isolation levels. The isolation level is specified based on type of read that allows in the transaction. The type of read operation is divided into three types. Dirty read Non-repeatable read Phantom read Dirty read: The transaction can read the data before it goes to the committed state is known as dirty read. Non-repeatable read: If the transaction read an attribute at time “t1”, and then the transaction reads the same attribute at time “t2” prints different results. The original attribute can change their data. Phantom read: It returns additional rows when the transaction executes a query at different time to satisfy the query.

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Specifications: Part-1Part-1: DescriptionIn this part of the lab you will build a single operation ALU. This ALU will implement a bitwise left rotation. Forthis lab assignment you are not allowed to use Digital's Arithmetic components.IF YOU ARE FOUND USING THEM, YOU WILL RECEIVE A ZERO FOR LAB2!The ALU you will be implementing consists of two 4-bit inputs (named inA and inB) and one 4-bit output (named out). Your ALU must rotate the bits in inA by the amount given by inB (i.e. 0-15).Part-1: User InterfaceYou are provided an interface file lab2_part1.dig; start Part-1 from this file.NOTE: You are not permitted to edit the content inside the dotted lines rectangle.Part-1: ExampleIn the figure above, the input values that we have selected to test are inA = {inA_3, inA_2, inA_1, inA_0} = {0, 1, 0,0} and inB = {inB_3, inB_2, inB_1, inB_0} = {0, 0, 1, 0}. Therefore, we must rotate the bus 0100 bitwise left by00102, or 2 in base 10, to get {0, 0, 0, 1}. Please note that a rotation left is…

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Chapter 10, Problem 17RQ

Program Plan Intro

ANSI transaction isolation level:

Transaction isolation levels indicate the degree of the transaction which specifies protected or isolated transactions from other concurrent transactions. The ANSI SQL standard defines transaction management based on transaction isolation levels.

The isolation level is specified based on type of read that allows in the transaction. The type of read operation is divided into three types.

Dirty read

Non-repeatable read

Phantom read

Dirty read:

The transaction can read the data before it goes to the committed state is known as dirty read.

Non-repeatable read:

If the transaction read an attribute at time “t1”, and then the transaction reads the same attribute at time “t2” prints different results.

The original attribute can change their data.

Phantom read:

It returns additional rows when the transaction executes a query at different time to satisfy the query.

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Specifications: Part-1Part-1: DescriptionIn this part of the lab you will build a single operation ALU. This ALU will implement a bitwise left rotation. Forthis lab assignment you are not allowed to use Digital's Arithmetic components.IF YOU ARE FOUND USING THEM, YOU WILL RECEIVE A ZERO FOR LAB2!The ALU you will be implementing consists of two 4-bit inputs (named inA and inB) and one 4-bit output (named out). Your ALU must rotate the bits in inA by the amount given by inB (i.e. 0-15).Part-1: User InterfaceYou are provided an interface file lab2_part1.dig; start Part-1 from this file.NOTE: You are not permitted to edit the content inside the dotted lines rectangle.Part-1: ExampleIn the figure above, the input values that we have selected to test are inA = {inA_3, inA_2, inA_1, inA_0} = {0, 1, 0,0} and inB = {inB_3, inB_2, inB_1, inB_0} = {0, 0, 1, 0}. Therefore, we must rotate the bus 0100 bitwise left by00102, or 2 in base 10, to get {0, 0, 0, 1}. Please note that a rotation left is…

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