def M31RegionSQLGen():
sql_select = "SELECT * FROM dr3.M31_Coordinate"
sql_select_vo = "SELECT objID,ra,dec,petroMag_u,petroMag_g,petroMag_r,petroMag_i,petroMag_z FROM BestDR12.dbo.PhotoObjALl WHERE "
conn, data = sqlHelper.getFetchMany(sql_select)
dic_radec = util.getRaDecMap(data)
sql_whereList = []
for ra in dic_radec.keys():
minDec = min(dic_radec[ra])
maxDec = max(dic_radec[ra])
sql_whereList.append(genSQL(ra, minDec, maxDec))
sql_where = util.listToString(sql_whereList, "or")
sql_select_vo += sql_where
print sql_select_vo
