Syntax

int CCFXQuery::AddRow(void)

Description

Add a row to the query. Call this function to append a row to a query.

Returns

Returns the index of the row that was appended to a query.

Example

The following example shows the addition of two rows to a three-column ('City', 'State', and 'Zip') query:

// First row 
    int iRow ; 
iRow = pQuery->AddRow() ; 
    pQuery->SetData( iRow, iCity, "Minneapolis" ) ; 
    pQuery->SetData( iRow, iState, "MN" ) ; 
    pQuery->SetData( iRow, iZip, "55345" ) ; 
     
    // Second row 
    iRow = pQuery->AddRow() ;     
    pQuery->SetData( iRow, iCity, "St. Paul" ) ; 
    pQuery->SetData( iRow, iState, "MN" ) ; 
    pQuery->SetData( iRow, iZip, "55105" ) ;

Syntax

CCFXStringSet* CCFXQuery::GetColumns(void)

Description

Retrieves a list of the column names contained in a query.

Returns

Returns an object of CCFXStringSet class that contains a list of the columns in the query. ColdFusion automatically frees the memory that is allocated for the returned string set, after the request is completed.

Example

The following example gets the list of columns, then iterates over the list, writing each column name back to the user:

// Get the list of columns from the query 
    CCFXStringSet* pColumns = pQuery->GetColumns() ; 
    int nNumColumns = pColumns->GetCount() ; 
     
    // Print the list of columns to the user 
    pRequest->Write( "Columns in query: " ) ; 
    for( int i=1; i<=nNumColumns; i++ ) 
    { 
        pRequest->Write( pColumns->GetString( i ) ) ; 
        pRequest->Write( " " ) ; 
    }

Syntax

LPCSTR CCFXQuery::GetData(int iRow, int iColumn)

Description

Gets a data element from a row and column of a query. Row and column indexes begin with 1. You can determine the number of rows in a query by calling CCFXQuery::GetRowCount. You can determine the number of columns in a query by retrieving the list of columns using CCFXQuery::GetColumns, and then calling CCFXStringSet::GetCount on the returned string set.

Returns

Returns the value of the requested data element.

Parameters

Example

The following example iterates over the elements of a query and writes the data in the query back to the user in a simple, space-delimited format:

int iRow, iCol ; 
    int nNumCols = pQuery->GetColumns()->GetCount() ; 
    int nNumRows = pQuery->GetRowCount() ; 
    for ( iRow=1; iRow<=nNumRows; iRow++ ) 
    { 
        for ( iCol=1; iCol<=nNumCols; iCol++ ) 
        { 
        pRequest->Write( pQuery->GetData( iRow, iCol ) ) ; 
        pRequest->Write( " " ) ; 
        } 
        pRequest->Write( "<BR>" ) ; 
    }

Syntax

LPCSTR CCFXQuery::GetName(void)

Description

Returns the name of a query.

Example

The following example retrieves the name of a query and writes it back to the user:

CCFXQuery* pQuery = pRequest->GetQuery() ; 
    pRequest->Write( "The query name is: " ) ; 
    pRequest->Write( pQuery->GetName() ) ;

Syntax

int CCFXQuery::GetRowCount(void)

Description

Returns the number of rows contained in a query.

Example

The following example retrieves the number of rows in a query and writes it back to the user:

CCFXQuery* pQuery = pRequest->GetQuery() ; 
    char buffOutput[256] ; 
    wsprintf( buffOutput, 
        "The number of rows in the query is %ld.", 
        pQuery->GetRowCount() ) ; 
    pRequest->Write( buffOutput ) ;

Syntax

void CCFXQuery::SetData(int iRow, int iColumn, LPCSTR lpszData)

Description

Sets a data element within a row and column of a query. Row and column indexes begin with 1. Before calling SetData for a given row, call CCFXQuery::AddRow and use the return value as the row index for your call to SetData.

Parameters

Example

The following example shows the addition of two rows to a three-column ('City', 'State', and 'Zip') query:

// First row 
    int iRow ; 
    iRow = pQuery->AddRow() ; 
    pQuery->SetData( iCity, iRow, "Minneapolis" ) ; 
    pQuery->SetData( iState, iRow, "MN" ) ; 
    pQuery->SetData( iZip, iRow, "55345" ) ; 
     
    // Second row 
    iRow = pQuery->AddRow() ; 
    pQuery->SetData( iCity, iRow, "St. Paul" ) ; 
    pQuery->SetData( iState, iRow, "MN" ) ; 
    pQuery->SetData( iZip, iRow, "55105" ) ;