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Vesnalui [34]
2 years ago
10

To prevent concurrent access of records, a transaction requires a ____ prior to data access. key grain timestamp lock

Business
1 answer:
11111nata11111 [884]2 years ago
4 0

Answer:

Lock

Explanation:

Locks is a mechanism to avoid the access of records from interacting with one another either in the form of user objects for example tables and/or rows or system objects not cannot be seen by the user such as data shared in memory.

The system (Oracle) obtains all the required locks when executing the transaction request so as to avoid any hassle faced by the user and so that they don't require to be bothered by it. This way the system provides both highest degree of data monitoring with lowest restriction.

Moreover, a fail safe data integrity is provided by the system in case of any failure. This lock can also be done manually by the user.

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Perfect Clean, Inc. provides housekeeping services. The following financial data have been provided.
ioda

Answer:

A) $38,650; 48.31%

Explanation:

The computation of the contribution margin and the contribution margin ratio is shown below:

Contribution margin = Service Revenue - Cleaning Supplies Used - wages expense

= $80,000 - $22,000 - $19,350

= $38,650

The variable cost is Cleaning Supplies Used + wages expense

And, the contribution margin ratio equals to

= (Contribution margin ÷ sales) × 100

= ($38,650 ÷ $80,000)  × 100

= 48.31%

7 0
3 years ago
The par value or stated value of stock represents the amount of legal capital that a corporation must maintain for the protectio
ohaa [14]

Answer:

True

Explanation:

This is the value of stock or share that was set by the owners of a corporation at the point of registration of the company. It is the price that is stated in the corporation's article of association and also in the share certificate. The par value of a share has no relationship with the market value as they can be far apart.

The par value is a value specified by law for the protection of the people who might want to extend credit to the corporation.

6 0
2 years ago
In 2017, John opened an investment account with Randy Hansen, who held himself out to the public as an investment adviser and se
yulyashka [42]

Answer:

The relevant tax issues are as follows:

- Is the loss a theft loss or an investment loss?

- Is the loss subject to either the personal loss limits or the limits on itemized deductions?

- How is the amount of the loss determined?

- In which year can the loss be taken?

- Is there a way to receive a tax benefit for the full amount of income recognized in prior years?

The irrelevant tax issue is:

- Did John have other casualty or theft losses within the last five years?

Explanation:

In this scenario John invested and provided Randy with a power of attorney to use $200,000 to purchase and sell securities on his behalf.

The earnings were to be reinvested, but John realised in 2020 that Randy was running a Ponzi scheme and his account was zero.

As John will most likely not be possible a casualty loss may be allowed.

Since the loss happened in 2017 when he invested the theft loss will be deducted in that year.

He will be able to deduct his losses under 165.

Deductions are allowed for losses in a tax year that is not covered by insurance.

Losses that can be claimed are limited to:

- Losses in business or trade

- Losses in transactions for profit

- Losses as a result of theft, fire, storm, or shipwreck.

5 0
3 years ago
How do i find the net income?
marishachu [46]

Answer:

Subtract all your expenses from your earnings which would be 750,000 - 200,000 -150,000 - 50000 = $350,000 net income

6 0
2 years ago
Describe the difference between multitasking and combining tasks.
Alika [10]
Multitasking means doing two task at the same time without disturbing any of the two task.
Combining tasking means doing the task by combining means like...both of them are processing one after one for a little bit of time...
5 0
3 years ago
Read 2 more answers
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