Result
GotoRow
move the cursor to the given row
Calling Sequence
Parameters
Description
Examples
result:-GotoRow(offset, opts )
result
-
Result module
offset
integer; the index of the row
opts
(optional) equation of the form relative=boolean
GotoRow moves the row cursor maintained within result to the row indexed by offset. If offset is positive, then it is interpreted to be relative to the beginning of the table. GotoRow(1) is the first row, GotoRow(2) is the second, and so forth. If offset is negative, then it is interpreted to be relative to the last row of the table. GotoRow(-1) is the last row, GotoRow(-2) is the second to last row.
The index of the current row can be obtained by calling GetRowIndex.
GotoRow accepts one optional argument.
relative = boolean
If relative is true, then offset is interpreted as relative to the current row. For example, GotoRow(1,relative=true) is equivalent to Next.
Setting the row cursor to a location beyond the ends of the table results in the cursor getting set to the row before the first data row or the row after the last data row.
Create a Result.
driver≔DatabaseLoadDriver⁡:
conn≔driver:-OpenConnection⁡url,name,pass:res≔conn:-ExecuteQuery⁡SELECT name FROM animals:
Notice the order of names.
res:-ToMaple⁡output=Array
fishdogcatrathorsesnakelizardparrotpighamster
Go to the last row.
res:-GotoRow⁡−1
true
res:-GetData⁡1
hamster
Go to the first row.
res:-GotoRow⁡1
fish
Go to the second row.
res:-GotoRow⁡1,relative=true
dog
Go to the second to last row.
res:-GotoRow⁡−2
pig
Go to the third to last row (absolute index of 8).
res:-GotoRow⁡−1,relative=true
parrot
Go to the fourth row (8-4=4).
res:-GotoRow⁡−4,relative=true
rat
Go to the sixth row (4+2=6).
res:-GotoRow⁡2,relative=true
snake
res:-GotoRow⁡10,relative=true
false
res:-GotoRow⁡20
See Also
Database
Database[Result]
Database[Result][First]
Database[Result][GetRowIndex]
Database[Result][Last]
Database[Result][Previous]
Database[usage]
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