SELECT c.name, b.sh_dd, d.photo_pic 
FROM wf_flow_inst a
LEFT JOIN wf_flow_d b ON a.inst_id = b.inst_id
LEFT JOIN tbrsystem..pswd c ON b.sh_usr = c.usr
LEFT JOIN salm d ON d.sal_no = b.sh_usr    
WHERE a.bil_no ='SA5B270006'            
AND A.BIL_ID='SA' 
AND b.node_itm =2          
ORDER BY b.sh_dd DESC;