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Join two tables

Posted By:      Posted Date: September 02, 2010    Points: 0   Category :Sql Server
I have following SQL command   SELECT     software_communication_comments.observation_comment,child_communication_observation_outcomes.communication_outcome_status, software_community_comments.observation_comment ,child_community_observation_outcomes.community_outcome_status From     child_observation,Child_Basic_Information  ,group_table ,software_communication_comments ,child_communication_observation_outcomes ,software_community_comments,child_community_observation_outcomes  where (child_observation.observation_ID = '2'  and   child_observation.child_ID = Child_Basic_Information.child_ID and group_table.group_ID = Child_Basic_Information.Group_ID) AND (child_communication_observation_outcomes.child_observation_ID = '2' AND software_communication_comments.comment_ID =  child_communication_observation_outcomes.communication_obser_outcomes_ID) AND ( child_community_observation_outcomes.child_observation_ID = '2' AND software_community_comments.comment_ID =  child_community_observation_outcomes.community_obser_outcomes_ID   ) This is working well if both table (child_community_observation_outcomes and child_communication_observation_outcomes) have records belongs to child_observation_ID =2 ,if one table dont have a relevent record it doesn't display anything. I need to ret

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