c# - Parameterized SQL, ORACLE vs SQL Server with regular expression -

-

oracle , sql server using different prefix parameters in parametrized string.

sql using @p1

ora using :p1

i use in sql @ , in case ora database used : character should replaces @.

can please me create regular expression?

here example sql:

update test_table set text = :p1 text = 'jana:klara' or some_value = :value or info = 'two'

similar question , alternative solutions can found here.

you can use pattern search search:

(?<=\w):(?=\w+)

for instance:

string output = regex.replace(input, @"(?<=\w):(?=\w+)", "@");

here's meaning of pattern:

  • (?<=\w) - (?<= ... ) syntax declares positive look-behind. in other words, match must preceded contents of look-behind. in case, it's declaring matches must preceded non-word character.
  • : - matches colon
  • (?=\w+) - (?= ... ) syntax declares positive look-ahead. in other words, match must followed contents of look-ahead. in case, it's declaring matches must followed 1 or more word-characters.

see online demo.

i can't think of reason why parameter first thing in input string, if possible, changing (?<=^|\w):(?=\w+) take care of situation too.


Comments

Post a Comment

Popular posts from this blog

Hatching array of circles in AutoCAD using c# -

-
i beginner in autocad plugins .i have created array of circle using following code. now, have hatch circles in array .how that??how hatch circles @ once? moreover, how can return hatch method , use hatch objects.sorry language.thanks in advance. [assembly: commandclass(typeof(beamsection.class1))] namespace beamsection { public class class1 { //class1 obj = new class1(); [commandmethod("beamatsupport")] public void addlightweightpolyline() { // current document , database document acdoc = application.documentmanager.mdiactivedocument; database accurdb = acdoc.database; promptpointresult ppr = acdoc.editor.getpoint("\nselect starting point "); var ucs = acdoc.editor.currentusercoordinatesystem; point3d startingpt = ppr.value.transformby(ucs); list<double> radius = new list<double>(); radius.add(0.5);
Read more

ios - UITEXTFIELD InputView Uipicker not working in swift -

-
hello trying pop uipickerview view programmatically when user clicks on textfield. have tried doesn't doing anything. isn't working. nothing happening when click textfield class userprofiletableviewcontroller: uitableviewcontroller,uitextfielddelegate,uipickerviewdelegate,uipickerviewdatasource { var itempicker: uipickerview! = uipickerview() @iboutlet weak var gendertxtfield: uitextfield! var gender = ["male","female"] override func viewdidload() { super.viewdidload() gendertxtfield.delegate = self itempicker!.delegate = self itempicker!.datasource = self itempicker!.backgroundcolor = uicolor.blackcolor() self.gendertxtfield.inputview = itempicker } func numberofcomponentsinpickerview(pickerview: uipickerview) -> int{ return 1 } // returns # of rows in each component.. func pickerview(pickerview: uipickerview, numberofrowsincomponent component:
Read more

Python Pig Latin Translator -

-
so have been working on @ codecademy.com while trying learn python. don't know if blind , can't see why won't work or what. here's code won't let me use. function print variable if had typed in , print "empty" if didn't type anything. print "welcome english pig latin translator!" original = raw_input("what's name?") if len(original) > 0 print original else print "empty" if len(original) > 0 else the above lines contains syntax errors. try: if len(original) > 0: else: note added colons, ( : ).
Read more