sql - OVER ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW not working. Incorrect syntax near 'ROWS' -

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select   dtotalcharge,   icarrierinvoicedetailsid,   dtpickupdate,   vctrackingnum,   sum(dtotalcharge) on (partition icarrierinvoicedetailsid   order dtpickupdate, vctrackingnum   rows between unbounded preceding , current row) runningtotal tblcid

getting error:

msg 102, level 15, state 1, line 6
incorrect syntax near 'rows'.

any idea wrong this. had problem before pivot before. these examples out of 70-461 training kit. confused.


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