这段代码有什么问题？

create or replace QUERY_INV_INF_V(WAREHOUSE_NAME,PRODUCT NAME,QTY,AVAIL_CD)
as
select INVLOC.name as warehouse name,PROD_INT.name as product name
from INVLOC,PROD INT,PROD INVLOC,PROD INV , PROD INV CAT
where INVLOC.X_STAT=0
PROD_INV.QTY>0
PROD_INV.prod_invloc_id=PROD_INVKOC.row_id
PROD_INV.prod_inv_cat_id=PROD_INV_CAT.row_id
PROD_INVLOC.invloc_id=INVLOC.row_id
PROD_INT.prod_id=PROD_INT.row_id;

replace 后面跟的类型呢？函数，还是存储过程，还是....