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Correction to the last update:<br />

<pre><code id="code-599084">UPDATE Part
SET Allocation = (SELECT COUNT(1) FROM [allocation_table] WHERE part_number = 'KV29')
WHERE PartNum = 'KV29';
</code></pre>
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Correction to the last update:


UPDATE Part
SET Allocation = (SELECT COUNT(1) FROM [allocation_table] WHERE part_number = 'KV29')
WHERE PartNum = 'KV29';


<div>
You can define a CHAR(0) but such a field can only store an empty string or NULL. Which does not appear to suit the requirement you describe.
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You can define a CHAR(0) but such a field can only store an empty string or NULL. Which does not appear to suit the requirement you describe.

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<div class="content wysiwyg-content">
I'm having trouble with this quetion can anyone help me undestand how to come to come to the answer.<br />
<br />
Add a field named Allocation to the Part table. The allocation is a number representing the number of units of each part that have been allocated to each customer. Set all values of allocation to zero. Calculate the number of units of part number KV29 currently on order. Change the value of allocation for part number KV29to this number. Display all the data in the Part table.<br />
<br />
ALTER TABLE Part<br />
ADD Allocation CHAR (0)<br />
UPDATE Part<br />
SET Allocation= some number<br />
WHERE PartNum= some number<br />
;<br />

</div>
</div>


I'm having trouble with this quetion can anyone help me undestand how to come to come to the answer.

Add a field named Allocation to the Part table. The allocation is a number representing the number of units of each part that have been allocated to each customer. Set all values of allocation to zero. Calculate the number of units of part number KV29 currently on order. Change the value of allocation for part number KV29to this number. Display all the data in the Part table.

ALTER TABLE Part
ADD Allocation CHAR (0)
UPDATE Part
SET Allocation= some number
WHERE PartNum= some number
;


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