IIRC =* is a right join, not a left join. *= is a left join.

SELECT A.recid,

A.id,

A.PROCID,

A.pstatus,

B.pname,

B.pdesc,

LEN(pname) AS plen,

CASE WHEN C.seq IS NULL THEN 0 ELSE 1 END AS DISABLED

FROM lprocs A,

inner join master B on A.PROCID = B.PROCID

right join pmap C on C.PROCID = A.PROCID

and C.typeid = (SELECT D.typeid FROM loan D WHERE D.id = A.id) --be careful here, this subquery could return more than 1 row

WHERE A.id = @id

ORDER BY pname

Be careful with that subquery, the subquery may return more than 1 row.

As a side note, it is a pet peeve of mine to use aliases a,b,c,d. They don't mean anything and I find actually make it more difficult to work with. You have to constantly keep referring to the from section of your query to remember which table is which.

Something like this. It is much easier to know what table any given column belongs to.

SELECT p.recid,

p.id,

p.PROCID,

p.pstatus,

m.pname,

m.pdesc,

LEN(pname) AS plen,

CASE WHEN m.seq IS NULL THEN 0 ELSE 1 END AS DISABLED

FROM lprocs p,

inner join [master] m on p.PROCID = m.PROCID]

inner join loan l on l.id = p.id

right join pmap m on m.PROCID = p.PROCID

and m.typeid = l.typeid

WHERE p.id = @id

ORDER BY pname