but you dont know how many records can be there in child table . Also if the status changes for child record you will have to take care of updating teh parent one also . -bp
----- Original Message ----- To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]> Sent: Wednesday, August 14, 2002 6:18 AM > Hi. We have a table in our data warehouse which keeps > info about calls made. This table has a child table > with some detailed information about parts of the > call. There may be any number of "parts" within a call > (1 to many) and every part has a status. > > MY developer wants to add a string field to the parent > table which will concatinate all the statuses for > all the parts within this call. For example if > a call has 4 parts and their statuses are "A","B","A" > and "F", the value of that field will be "ABFA". Then > the developer will be able to query smalle parent > table instead of a large child table in order to see > how many calls had at least one part with status "A" > or statuses "A" and "F" etc by using a INSTR (or > SUBSTR) command. > > Would it be better (from performance/CPU standpoint) > to add several separate fields: STATUS_A_CNT, > STATUS_B_CNT (the list of status codes is fairly > static) instead? There is something about this string > that rubs me the wrong way, but I can't put my finger > on it. > > Any thoughts? > > thank you > > Gene > > __________________________________________________ > Do You Yahoo!? > HotJobs - Search Thousands of New Jobs > http://www.hotjobs.com > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: Gurelei > INET: [EMAIL PROTECTED] > > Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 > San Diego, California -- Public Internet access / Mailing Lists > -------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB ORACLE-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). > -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: BigP INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
