XQuery Confirmed Errata | O'Reilly Media

Errata

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The errata list is a list of errors and their corrections that were found after the product was released. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Corrected".

The following errata were submitted by our customers and approved as valid errors by the author or editor.

Color Key: Serious Technical Mistake Minor Technical Mistake Language or formatting error Typo Question

Version	Location	Description	Submitted By
Printed	Page 4 Example 1-6	The right-hand side of the 'let' statement refers to 'named'. Should that be 'name'? let $name := $product/named vs. let $name := $product/name	Anonymous
Printed	Page 8 Second paragraph from bottom	The end of the sentence should read "h1 element" not "ul element", so the sentence is "The content outside the curly braces, namely the strings "There are " and " products." appear literally in the results, as textual content of the h1 element.	Anonymous
Printed	Page 34 2nd paragraph in "Useful Function" box	The description of the function states that it performs a "value comparison", but the source code shows it as performing a "general comparison".	Anonymous
Printed	Page 38 Table 3-5	There is an extra space in the path expression in the third row of the first column of Table 3-5. I think it should be: not(doc("catalog.xml")/catalog/product)	Anonymous
Printed	Page 45 last row of Table 4-4	Page 45, last row of Table 4-4: 'parent::node/number' should be 'parent::node()/number'.	Pekka Kilpeläinen
Printed	Page 79 line 6-7	Page 79, line 6-7: It is erroneous, or at least misleading, to say that a variable "should not be referenced in the let clause itself, as in: let $count := $count + 1 ". The above does not refer to the variable $count that is being declared. According to Section 3.8.1 of the XQuery 1.0 Recommendation, "The scope of a variable bound in a for or let clause [...] does not include the expression to which the variable is bound." Thus, the right-hand side of the above let clause either (a) refers to a previously declared $count variable or (b) it is erroneous (XPST0008: Variable $count has not been declared). Note from the Author or Editor: The end of the first paragraph on page should be changed from "and it should not be referenced in the let clause itself, as in:" to "and it cannot be referenced in the let clause itself, as in:" (should not --> cannot). Also, the first sentence of second paragraph should be changed from "This is not illegal, but it will have unexpected..." to "This is not illegal, but it is actually declaring a new variable with the same name, so it will have unexpected..."	Pekka Kilpeläinen
Printed	Page 158 3rd paragraph	same heading as paragraph 4 of page 158 Suggestion: Casting from xs:string or xs:untypedAtomic	Anonymous