To use a Scalar function or Table valued function,in sql server to determine the best -


i using sql-server 2012

my table definition is:

create table products1(pid int,pnm varchar(10),oid int foreign key references orders1(oid))  create table orders1(oid int primary key,onm varchar(10),odt date)  insert products1 values(1,'abc',1),(2,'def',2)  insert orders1 values(1,'qty','2013-04-27'),(2,'prod','2015-04-29')  create function dbo.udf_getmaxdt(@a date) returns date begin select @a=max(o.odt) orders1 o inner join products1 p on o.oid=p.pid return @a end   create function dbo.udf_getmaxdt(@a date) returns table  return ( select @a=max(o.odt) orders1 o inner join products1 p on o.oid=p.pid ) end

the syntax might wrong on task determine best of 2 types of function.

but aint able tell one,could me on this?

regards, chio

the first 1 scalar function

the second 1 inline table valued udf

the second 1 has pattern can recognize: 

create function [dbo].[fn_geo_calcdistance] (     ... ) returns table return  select ...

the second 1 , when inlined query , cause query not referenced outside query inline query , mush faster


Comments

Post a Comment

Popular posts from this blog

php - failed to open stream: HTTP request failed! HTTP/1.0 400 Bad Request -

this code i'm using find latitude , longitude of place: function coords($address){ echo $url="http://maps.googleapis.com/maps/api/geocode/json?address=".$address; $json = file_get_contents(urlencode($url)); $data = json_decode($json, true); print_r($data['results'][0]['geometry']['location']['lat']); print_r($data['results'][0]['geometry']['location']['lng']); } however returns warning: failed open stream: http request failed! http/1.0 400 bad request if use above code in simple procedure works fine not in function. note: have tried curl_init()... method produced same result? instead of encoding whole url encode address part. following code work fine $add='jamshoro phase 2'; $url="http://maps.googleapis.com/maps/api/geocode/json?address=".urlencode($add); $json = file_get_contents($url); $data = json_decode($json, true); print_r($data['r
Read more

java - How to filter a backspace keyboard input -

i have code gives message when key number pressed: txtvalueofclause.addeventfilter(keyevent.key_typed, new eventhandler<keyevent>() { @override public void handle(keyevent t) { char ar[] = t.getcharacter().tochararray(); char ch = ar[t.getcharacter().tochararray().length - 1]; if (!(ch >= '0' && ch <= '9')) { system.out.println("the char entered not number"); t.consume(); } } }); now if press on wrong button , press backspace remove it, error message. how can add backspace input if statement? i have found answer: txtvalueofclause.addeventfilter(keyevent.key_typed, new eventhandler<keyevent>() { @override public void handle(keyevent t) { char ar[] = t.getcharacter().tochararray(); char ch = ar[t.getcharacter().tochar
Read more

java - Show Soft Keyboard when EditText Appears -

i have code in android app, alert dialog , keyboard, , when dialog shown want keyboard appear. not , not sure why? here code: final alertdialog.builder alert = new alertdialog.builder(this); alert.settitle("title"); alert.setmessage("message"); final edittext input = new edittext(this); input.setinputtype(inputtype.type_class_number); alert.setview(input); input.setonfocuschangelistener(new view.onfocuschangelistener() { @override public void onfocuschange(view v, boolean hasfocus) { if (hasfocus) { log.i(tag, "in focus"); inputmethodmanager inputmethodmanager = (inputmethodmanager) getsystemservice(context.input_method_service); inputmethodmanager.showsoftinput(input, inputmethodmanager.show_implicit); } } }); but keyboard not appear though edit text in focus, , tell appear why, doesn't come up? thanks in advance.
Read more