本文整理汇总了C++中RSqlStatement::BindNull方法的典型用法代码示例。如果您正苦于以下问题：C++ RSqlStatement::BindNull方法的具体用法？C++ RSqlStatement::BindNull怎么用？C++ RSqlStatement::BindNull使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类RSqlStatement的用法示例。
在下文中一共展示了RSqlStatement::BindNull方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: write
/**
Performs write (Insert/Update) operations for indiviual communication addresses of
type "Email address" or "SIP Address".
*/
void CPplCommAddrTable::DoNonPhoneWriteOpL(const TDesC& aAddress, const TCntSqlStatement aType,
TInt aCntId, TCommAddrType aAddrType, TInt aCommAddrId)
{
// leave if the statement type is not insert or update.
// also, we can't update if aCommAddrId is 0 as we don't know the record's id
if ((aType != EUpdate && aType != EInsert) || (aType == EUpdate && aCommAddrId == 0) )
{
User::Leave(KErrNotFound);
}
RSqlStatement stmnt;
CleanupClosePushL(stmnt);
// temporary reference to the CCntSqlStatements member variables to take advantage
// of the commonality between update and insert operations.
CCntSqlStatement* tempCntStmnt = iUpdateStmnt;
if (aType == EInsert)
{
tempCntStmnt = iInsertStmnt;
}
User::LeaveIfError(stmnt.Prepare(iDatabase, tempCntStmnt->SqlStringL() ) );
User::LeaveIfError(stmnt.BindInt(tempCntStmnt->ParameterIndex(KCommAddrContactId() ), aCntId) );
User::LeaveIfError(stmnt.BindText(tempCntStmnt->ParameterIndex(KCommAddrValue() ), aAddress) );
User::LeaveIfError(stmnt.BindNull(tempCntStmnt->ParameterIndex(KCommAddrExtraValue() ) ) );
User::LeaveIfError(stmnt.BindInt(tempCntStmnt->ParameterIndex(KCommAddrType() ), aAddrType) );
if (aType == EInsert)
{
User::LeaveIfError(stmnt.BindNull(tempCntStmnt->ParameterIndex(KCommAddrId() ) ) );
}
else
{
// it's the sixth parameter in the query and is in the WHERE
// clause so we can't get its index from the CCntSqlStatement
const TInt KCommAddrIdParamIndex(KFirstIndex + 5);
User::LeaveIfError(stmnt.BindInt(KCommAddrIdParamIndex, aCommAddrId) );
}
User::LeaveIfError(stmnt.Exec() );
CleanupStack::PopAndDestroy(&stmnt);
}