Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>I find another solution for the question</p> <pre><code> Option Base 0 Option Compare Binary Option Explicit Private Const VT_BYREF = &amp;H4000 Private Const VARIANT_DATA_OFFSET As Long = 8 Private Declare Function SafeArrayGetDim Lib "oleaut32.dll" _ (ByVal pSA As Long) _ As Long Private Declare Function SafeArrayGetLBound Lib "oleaut32.dll" _ (ByVal pSA As Long, _ ByVal nDim As Long, _ ByRef plLbound As Long) _ As Long Private Declare Function SafeArrayGetUBound Lib "oleaut32.dll" _ (ByVal pSA As Long, _ ByVal nDim As Long, _ ByRef plUbound As Long) _ As Long Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" _ (ByRef lpDest As Any, _ ByRef lpSource As Any, _ ByVal lByteLen As Long) ' Public Function LBoundEx(ByRef vArray As Variant, _ Optional ByVal lDimension As Long = 1) As Long Dim iDataType As Integer Dim pSA As Long 'Make sure an array was passed in: If IsArray(vArray) Then 'Try to get the pointer: CopyMemory pSA, ByVal VarPtr(vArray) + VARIANT_DATA_OFFSET, 4 If pSA Then 'If byref then deref the pointer to get the actual pointer: CopyMemory iDataType, vArray, 2 If iDataType And VT_BYREF Then CopyMemory pSA, ByVal pSA, 4 End If If pSA Then If lDimension &gt; 0 Then 'Make sure this is a valid array dimension: If lDimension &lt;= SafeArrayGetDim(pSA) Then 'Get the LBound: SafeArrayGetLBound pSA, lDimension, LBoundEx Else LBoundEx = -1 End If Else Err.Raise vbObjectError Or 10000, "LBoundEx", "Invalid Dimension" End If Else LBoundEx = -1 End If Else LBoundEx = -1 End If Else Err.Raise vbObjectError Or 10000, "LBoundEx", "Not an array" End If End Function Public Function UBoundEx(ByRef vArray As Variant, _ Optional ByVal lDimension As Long = 1) As Long Dim iDataType As Integer Dim pSA As Long 'Make sure an array was passed in: If IsArray(vArray) Then 'Try to get the pointer: CopyMemory pSA, ByVal VarPtr(vArray) + VARIANT_DATA_OFFSET, 4 If pSA Then 'If byref then deref the pointer to get the actual pointer: CopyMemory iDataType, vArray, 2 If iDataType And VT_BYREF Then CopyMemory pSA, ByVal pSA, 4 End If If pSA Then If lDimension &gt; 0 Then 'Make sure this is a valid array dimension: If lDimension &lt;= SafeArrayGetDim(pSA) Then 'Get the UBound: SafeArrayGetUBound pSA, lDimension, UBoundEx Else UBoundEx = -1 End If Else Err.Raise vbObjectError Or 10000, "UBoundEx", "Invalid Dimension" End If Else UBoundEx = -1 End If Else UBoundEx = -1 End If Else Err.Raise vbObjectError Or 10000, "UBoundEx", "Not an array" End If End Function Private Function test() Dim Cdo() As Variant Dim a() As String Dim b() As String ReDim Cdo(1 To 5, 1 To 2) ReDim a(1 To 2) ReDim b(1 To 3, 1 To 2) Cdo(1, 2) = a Cdo(2, 2) = b '- test Dim x As Long Dim y As Long Dim z As Long Dim q As Long Dim ok As Boolean x = 2 y = 2 z = 2 q = 2 '- set to -1 for Cdo(x, y)(z) and to &gt;=0 for Cdo(x, y)(z,q) ok = False If (UBoundEx(Cdo, 1) &gt;= x) Then If (UBoundEx(Cdo, 2) &gt;= y) Then If (Not IsEmpty(Cdo(x, y))) Then If (UBoundEx(Cdo(x, y), 1) &gt;= z) Then If (q &gt;= 0) Then If (UBoundEx(Cdo(x, y), 2) &gt;= q) Then Debug.Print Cdo(x, y)(z, q) ok = True End If Else If (UBoundEx(Cdo(x, y), 2) = -1) Then Debug.Print Cdo(x, y)(z) ok = True End If End If End If End If End If End If if (ok) then debug.print "OK" end it End Function </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POHow do I test for empty elements in different places in an array? I.e. how can I test for whether a location has been dimensioned in a jagged array?
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USThomas
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    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.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload