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Okay this video I'm gonna talk about the scope of triggers and how triggers fire within Oracle forms and now the scope of triggers is a very important concept because a lot of people get confused, and they'll put a trigger on an item or a block or at the forum level, and then they'll get confused as to why it fired or why it didn't fire, so I try to clear that up in this video now there are three a trigger is a PL sequel block of code that executes when an event fires now events can fire at different levels so if I'm in this field the amp no field and I hit the tab key the Keen next item event will fire if I'm at a block there are those same key triggers can be defined at the block level, and they can also be assigned at the forum level, so I'm going to create a very quick little demo just to show you triggers firing at different levels so the first thing I'm going to do is I'm going to go to the amp new field, and I am going to put in a key next item trigger again that's when the tab key is hit so when my PL sequel editor comes up I'm going to just say a message I am an item level trigger now one of the important things you got to realize is I've just taken away the default functionality of the key next item field so in write in key next item what would normally happen when I hit the tab key is it would run the next item procedure which would bring you to the next item so what I need to do here is put in next item okay so not only will I show this message I'll go to the next item okay, so now I'm going to just copy that because I'm going to need that in a second, so now I want to create that same trigger, but I want to put it at the block level now when I put the trigger at the block level it's gonna fire any time the key is pressed the tab key is pressed and there is no item level trigger so when I fire the amp when I put it at the block level and I hit the tab key on empty it's gonna fire but when I hit the tab key on M no not gonna fire because there's already an eye level trigger that will fire in its place, so now I want to go to the block I'm to unblock I'm going to do the same thing I'm going to put go down here to key next item and then now what I'm going to do is I'm just gonna paste this code in didn't say I am a block level trigger okay I'll compile that real quick to make sure I didn't screw anything up, and now I want to create the forum level trigger so the way it works now is if I'm on the amp no field and I hit the tab key it's gonna fire the item level trigger if I'm the M name or the depth no field it's gonna fire the block level trigger but if I'm down here in the second block the depth block nothing's gonna fire because I haven't defined a trigger that's within the scope of these keys down in this block so what I'm going to do is I'm going to put a forum level trigger, and I'm going to do the same thing I'm going to go down to key next item I'm going to paste that same code in I had before and this time I'm going to create...
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