isolation level RR

PLEASE HELP ME My question : How does isolation level repeatable read work I thought it places share locks on every row selected in queries in transaction - i did this: begin work; set isolation to repeatable read select * from table where ...... i expected it places locks on rows according to where clause. But it placed share lock on table . Am i missing something ? Informix On line 7.20 DSA - SNI Informix On line 7.22 WGS - Win NT databases created in non Ansi mode unbuffered logging thanks katarina -- Katarina Hamzova Voice : +42 7 5384324 SWH s.r.o Bratislava Slovakia Internet : Katarina.Hamzova@swh.sk