Labels:text | screenshot | font | number | black and white OCR: Lock Type Description rdConcurLock The cursor will implement the lowest level of locking needed to enable updating of the row. rdConcurReadOnly No updates are enabled; the cursor is read-only. rdConcurRowVer The cursor uses optimistic concurrency, comparing the row versions to determine if the update is enabled. rdConcurValues Also uses optimistic concurrency, although this style actually compares the data instead of the version attributes. Figure 7: the rdoResultset lock types.