主题：语法解法

(((((sapprd.lfa1 left join sapprd.lfb1 on sapprd.lfa1.lifnr=sapprd.lfb1.lifnr) left join sapprd.lfbk on sapprd.lfa1.lifnr=sapprd.lfbk.lifnr) left join sapprd.usr21 on sapprd.lfa1.ernam=sapprd.usr21.bname) left join sapprd.adrp on sapprd.usr21.persnumber=sapprd.adrp.persnumber) left join sapprd.t052 on sapprd.lfb1.zterm=sapprd.lfb1.zterm)”