be used by HHR to compare the values and operate on records with equal value in
indicated columns. The columns given as parameters must agree with type
according to the flow chart 1:
●
A relation: both columns are transponder read type (R)
●
B relation: both columns are date type.
Example:
Join(table.MOTHEREID,log.MOTHEREID)
Join(table.DATE,log.DATE)
Join function automatically update Joining column at current record, for example if
we would get a transponder number and place it in table
(ReadSeek(table.col_name) after that jointed Table and Log with Join Function,
and created a new record in Log(FillAddRec(log)) then new record in Log would
appear with just read transponder number.
Example:
ReadSeek(table.EID)
Join(table.EID,log.LEID)
Sorting(log.*)
FillAddRec(log)
//now column LEID in Log in current record number
//is fulfill with transponder number read by
//ReadSeek function
PutGlobal(log.EVENT,1)
FillExp(log.DATE,date())
FillExp(log.TIME,time())
According to example above
ONLY AFTER JOIN
function we can automatically
put data to Log.
Of course you can use different types of columns in Join function but this variant is
used only for very specific needs, and its narrow-range usable. Remember that you
must consider all the values which may appear in columns and sense of
connecting column in such case.
You can organize way of displaying data from Log by Sorting function, this function
defines way of using Up Arrow and Down Arrow buttons.
Function syntax:
Sorting(col_name)
This function sort displayed data according to alphabetical(ASCII) order, pressing
Down Arrow will make HHR move to bigger value(ASCII order) in indicated column,
and Up Arrow will make HHR move to smaller value(ASCII value).
Example:
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