StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
primarykey
Id
346505
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
2
CommunityOwnedDate
CreationDate
2008-12-06T17:20:36.393
FavoriteCount
0
LastActivityDate
2008-12-06T17:29:56.747
LastEditDate
2008-12-06T17:29:56.747
LastEditorUserId
36305
OwnerUserId
36305
ParentId
346226
PostTypeId
2
Score
162
ViewCount
0
LastEditorDisplayName
Dimitre Novatchev
text
Body
The value of the $var variable as defined in:    <code><xsl:variable name="var" select="boolean('false')"/></code> is    <code>true()</code> This is because in XPath "<code>false</code>" is an ordinary string, as opposed to <code>false()</code>, which is the constructor for the <code>boolean</code> value <code>false()</code> The two boolean values in XPath are (note that they are constructed!):    <code>true()</code> and <code>false()</code> The detail of converting any value to boolean are spelled outin the <a href="http://www.w3.org/TR/xpath#section-Boolean-Functions" rel="noreferrer">XPath Spec</a>.: "The <a href="http://www.w3.org/TR/xpath#function-boolean" rel="noreferrer">boolean</a> function converts its argument to a boolean as follows: <ul> <li>a number is true if and only if it is neither positive or negative zero nor NaN</li> <li>a node-set is true if and only if it is non-empty</li> <li>a string is true if and only if its length is non-zero</li> <li>an object of a type other than the four basic types is converted to a boolean in a way that is dependent on that type "</li> </ul> In your case the string "false" is not the number 0 and has a positive length, so the rule in the 3rd bullet above is applied, yielding <code>true()</code>. Therefore, to define a variable in XSLT 1.0, whose value is <a href="http://www.w3.org/TR/xpath#function-false" rel="noreferrer"><code>false()</code></a>, one needs to write the definition as the following:    <code><xsl:variable name="vMyVar" select="false()"/></code> or, if you don't exactly remember this, you could always write:    <code><xsl:variable name="vMyVar" select="1 = 0"/></code> (specify any expression that evaluates to <code>false()</code>) and the XSLT processor will do the work for you. In XSLT 2.0 it is always better to explicitly specify the type of the variable:    <code><xsl:variable name="vMyVar" as="xs:boolean" select="false()"/></code>
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POHow to create a boolean value?
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USDimitre Novatchev
UserOwnerUserId
1. USDimitre Novatchev
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. POHow to create a boolean value?
 singulars
 PostTypePostTypeId
 PTQuestion
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
2. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
3. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId
1. This table or related slice is empty.

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.