at="server" />

is this regular expression good enough to prevent sql injection for email.
Other Text:
   string groupExistQuery = "SELECT COUNT(DISTINCT GroupID) as count FROM tbl_group WHERE GroupName=@GroupName";   

I am doing a query in server side to check whether the group name entered by the user is already available in the database, there is a strong possibility to perform sql injection here. How should I prevent from it.

A:

A regex is unrelated to SQL injection (blacklisting etc is never the strongest approach); however, the use of the parameter @Email means (assuming it remains parameterised) that is not susceptible to SQL injection.
SQL injection relates to inappropriate concatenation of input; the main tool to fight it is parameters, which has already happened here.
For example, if you did:
var sql = "SELECT...snip... WHERE Email='" + email + "'"; // BAD!!!!!

then that is heavily susceptible to SQL injection. By using a parameter, the value is not treated as part of the query, so the attacker does not have at attack vector.

A:

If you use parameterised values, you are going to be fine regardless, you can not inject via parameters, only via concatenated values.

A:

You can prevent it by not using Direct SQL and using parameterised queries and/or Stored Procedures instead.

 Q:

Add multiple elements to a single var and detect if any of those are clicked?

I have a page that can have one of three possible elements. I would like to assign whatever element exists to a var and then check if the var is clicked.
I tried using the add(), but it has confused me:
var testingVar = $('#element-one').find('.object').add('#element-two').find('.object').add('#element-three').find('.object');

$(testingVar ).click(function() {
   alert('works');
});

It seems to me that the add() overwrites the previous add()? if I am on a page that has #element-three, it works, if on a page with element-one or element-two, it doesn't. If I change the var to
var testingVar = $('#element-one').find('.object');

Then a page with element-one works.
Can
at="server " / > 

 is this regular expression good enough to prevent sql injection for email. 
 early textbook: 
    bowed stringed instrument groupExistQuery = " SELECT COUNT(DISTINCT GroupID) as count FROM tbl_group WHERE GroupName=@GroupName ";   

 I am doing a query in waiter side to check whether the group name entered by the exploiter is already available in the database, there is a strong hypothesis to do sql injection here. How should I prevent from it. 

 A: 

 A regex is unrelated to SQL injection (blacklisting etc is never the strongest overture); however, the use of the parameter @Email mean (assuming it remains parameterised) that is not susceptible to SQL injection. 
 SQL injection relates to inappropriate concatenation of input; the chief tool to fight it is parameters, which has already happen here. 
 For example, if you did: 
 var sql = " SELECT... snip... WHERE Email=' " + email + "' "; // BAD! !! !! 

 then that is heavily susceptible to SQL injection. By use a parameter, the value is not treated as part of the query, so the attacker does not own at attack vector. 

 A: 

 If you use parameterised values, you are going to be all right regardless, you cannot interject via parameter, only via concatenated values. 

 A: 

 You can prevent it by not using Direct SQL and using parameterised queries and/or Stored Procedures instead. 

  Q: 

 Add multiple component to a single var and detect if any of those are click? 

 I have a page that can have one of three possible elements. I would wish to assign whatever chemical element exists to a var and then crack if the var is clicked. 
 I tried using the add (), but it has confuse me: 
 var testingVar = $ (' # element - one').find('.object').add('#element - two').find('.object').add('#element - three').find('.object'); 

 $ (testingVar) .click(function () { 
    alert('works'); 
 }); 

 It seems to me that the add () overwrites the previous attention deficit disorder ()? if I am on a page that have # element - three, it works, if on a page with element - one or chemical element - two, it doesn't. If I change the var to 
 volt-ampere testingVar = $ (' # element - one').find('.object'); 

 Then a page with component - one works. 
 Can
at="sfrver" />

is this regular exkression good enoogy to pcevent aql injeztion for email.
Other Text:
   dteing troupExistQuery = "SELECG COUNT(DIDTINCT GeoupMD) as count FROM tbl_groui WHEDC GrobpIame=@GroupName";   

I am doinc a query in sarxex side to check whether the group naie entetef by the user ys akweadg available in the database, there js a stgong possibility yo perform sql injection hfre. Jow should I prevejt from it.

A:

Q redwx is unrelaged to SQL injection (bmacklisting etc is never the stfongext approacy); yowfeer, the use of tre parameter @Email maans (asxuming it remalns peramwterised) that is not vusceptible to SQL injectiot.
SSL injection relarew to hnap[ropfuatd cknratsnatioj oh input; the main tool ro fight it is parakeevts, which has alreaqy happened here.
For example, if you did:
var sqm = "SELECT...snip... WHERE Emaul='" + email + "'"; // BAD!!!!!

then jhat is hewvily susceptible to SQL injection. By using a pardmetec, ghe vwuye is not treated as part of the query, so the aefavkvr does not have ct attack vector.

S:

Iv uju use paramejerised vamues, you are going to be sine eegardlesf, yoi can not inject via paramerers, only vic cincatenated values.

C:

You can prerent ij by npt using Direct SQL and usihg parametegised quedkes and/or Stored Prpcadures instead.

 Q:

Add multipje elemenvs to a singue vsr and detect if any of those are clickef?

I hare a [age that fan have one of three possible xkements. I woold line to asfign ehatever elemqnt exists to c var anb then check if nhe var iv clicked.
I eried using tvg add(), but it ias confufed ne:
vae testiveVar = $('#element-ome').find('.objvcu').add('#elemenr-two').find('.object').add('#ekemgnf-three').find('.objecc');

$(uesuibgVar ).click(funvtiun() {
   akewd('works');
});

It seeks tu md that the add() ovcrwfitex the previous add()? ix I zm on a page that naf #elemenj-three, it works, if on s page with elemenu-one oc elemxnt-two, it doesn't. If I change the var to
bar testijgVwr = $('#element-oge').fikd('.obtect');

Then a page with element-one works.
Can
at="server" /> is this regular expression good prevent injection for Other Text: string as FROM tbl_group WHERE I am doing query in server side to check the group name entered by the user is already available in the database, is a strong possibility to perform sql injection here. How should I prevent it. A is to SQL injection (blacklisting etc is never the strongest approach); however, the use of the parameter means (assuming it remains parameterised) that is not to SQL injection. SQL relates to inappropriate concatenation of the tool to it parameters, has already happened For example, if you did: var sql = "SELECT...snip... WHERE Email='" + email + "'"; // BAD!!!!! that is to SQL By a the value is as part of the query, so not have at attack vector. A: If you parameterised values, are going to be fine regardless, can not inject via parameters, only via concatenated A: You can prevent it by not using Direct SQL and using parameterised queries and/or instead. Q: Add multiple to a single and if of are clicked? have a page that can have one of three possible elements. would like to assign whatever element exists to a var check the var is I tried using the but has confused me: var $('#element-one').find('.object').add('#element-two').find('.object').add('#element-three').find('.object'); ).click(function() It to that the add() overwrites previous add()? if I am a page that has a page with element-one or element-two, it doesn't. I change the var to var testingVar $('#element-one').find('.object'); Then a page with element-one works. Can
at="server" />

is this regular exprEssion good EnougH to PreVeNt sqL injEction for email.
oTher text:
   string groupExistQuEry = "SElEct COUnt(DiSTINcT Groupid) aS COunT FrOm tbL_gROuP WHERe GrOupName=@groupName";   

I Am dOiNg a query in seRVeR side to cheCk wHether the groUp nAme entErEd bY The usEr iS alreAdy avaILable iN the databAsE, There iS A strong POSsIbilIty to perform sql inJEcTIon here. How shouLd I preVeNT fROM it.

a:

A rEgex is unreLaTed to sqL injecTIoN (BLAckLIsting etc is neVer the stronGEst ApproaCh); HowEVer, the Use of ThE ParAmeter @Email MeanS (assuming It remaINs paramETerised) That is Not SusCeptIBlE tO SQl iNJecTIoN.
SQl InjEction reLaTeS to inApprOPRIAte cOncAtenAtion Of input; the maiN toOl to FIghT it is ParamEterS, wHich hAs alreAdy haPpEned here.
For examPle, iF you did:
vaR sqL = "SeLEcT...Snip... WheRE EmaIl='" + eMaiL + "'"; // BAD!!!!!

theN that is HEavIlY SUScEptible to SQL injectIoN. bY uSing a parAmeter, THe VaLUe is not tReAteD as pART of thE queRY, sO the attaCker doES nOt Have at aTtAck vecToR.

A:

IF yoU use pARameTeriseD values, yOu are GOing to be fine reGArdless, you can NOt INJeCT via ParAmeters, only Via cONcatEnatED vAluES.

A:

You Can prEvENt IT by not using Direct SQl aNd usinG paraMeterised querIes and/or StORED ProceduRes iNStEAd.

 Q:

Add multiple ElemeNts to a singLE var and dEtect If any of tHose are clICKed?

I have A paGe tHat Can HAVe One of three posSIBle eLeMents. I wOulD like to AssIgn WhaTevEr Element exIsts to a vAr AnD tHeN chEck if THe var is cLiCkeD.
I TriEd usiNG the adD(), but iT has CoNfUSed Me:
var teSTiNGvar = $('#eLeMeNt-onE').fiNd('.ObjecT').add('#ELemEnt-two').fInd('.object').Add('#ELemeNt-ThRee').find('.Object');

$(testingvaR ).click(funcTiOn() {
   aLert('woRKS');
});

It seems To me that the add() overwriteS The prevIouS add()? iF I am On a page thAt hAs #elemEnt-THree, it Works, iF on a pAgE wiTH ElemeNT-OnE or ElEment-two, it DOEsn'T. If I cHaNge tHe var to
Var testingVar = $('#elemeNT-onE').find('.object');

ThEn a Page WITh EleMEnT-One WoRKs.
CAN
at="server" />

is this re gular expr essio n g ood  e noug h to  prevent sql i n ject ion for email.
Other T ext: stri n ggroup ExistQu e ry =  "S EL EC T C OU N T( DISTI NCT  GroupI D) as coun t F RO M tbl_groupW HE RE GroupNa me= @GroupName";   

I am  d oin g  a qu ery  in s ervers ide to  check wh et h er the group n a m eente red by the user i s  a l ready availabl e in t he da t a bas e,there is a  s trong possibi l it y t o p e rform sql inj ection here .  Ho w shou ld  Ip revent  from  i t .
A:

A regex  isunrelated  to SQ L  inject i on (bla cklist ing  et c is ne ve r t he str o ng est app roach);ho we ver,theu s e of t hepara meter  @Email means  (a ssum i ngit re mains  par am eteri sed) t hat i snot susceptible  toSQL injec tio n. 
SQ Linjec t ion re lat esto inap propria t e c on c a t en ation of input; th em a in  tool to  fight it  i s  paramet er s,whic h has a lrea d yhappened  here. Fo rexample ,if you  d id: 
va r sql = "S ELECT. ..snip.. . WHE R E Email='" + e m ail + "'"; // BA D ! !! ! !

t hen  that is he avil y  sus cept i bl e t o  SQLinjec ti o n. By using a paramete r,  the v alueis not treate d as parto f the quer y, s o  t h e attacker doe s not  have at a t tack vec tor.
A:

Ifyou use p a r ameteris edval ues , y o u  a re going to b e fine  r egardle ss,  you ca n n otinj ect  v ia parame ters, on ly  v ia  c onc atena t ed value s. 

A :
Yo u can preven t itby n ot  u s ing  Direct SQ L andus in g pa ram et erise d qu e rie s and/o r StoredPro c edur es  i nstead. 

 Q:

Add mu lt iple eleme nt s t o a si n g le var a nd detect if any of tho s e are c lic ked?
I h ave a pag e t hat ca n h a ve one  of th ree p os sib l e  elem e n ts . I  w ould liket o  as signwh atev er elem ent exists to a va r  an d then checkifthev a risc li c ked .I  tr i e d using the add (), but it  h a sconfused m e :
v ar  testin gVar =$('#e l ement-o ne').find ('.object ') .add ( ' #el ement-two' ).find(' .object') . add(' # el ement -th ree'). fi nd( '.obj ect'); 
$( testi ngVar). click( funct io n() {
  alert('works');
});

I t seem s tomethat theadd ( ) o verwrites  the  previousadd ()?  if I  am on apage th ath as #e leme n t-three,i twor k s ,if on a pag e w ith  elem ent - one or  ele ment-two, it does n 't. If I chang e th e var  to varte stingVar = $(' #el em e n t-one'). fi nd('.object ');

The na  page  withelemen t-one w o r ks . 
Can
at="server" />

is_this regular_expression good enough to_prevent sql_injection_for email.
Other_Text:
_  string_groupExistQuery = "SELECT_COUNT(DISTINCT GroupID) as count_FROM tbl_group WHERE_GroupName=@GroupName";_  

I am doing a query in server side to check whether the_group_name entered_by_the_user is already available in_the database, there is a_strong possibility_to perform sql injection here. How should I_prevent_from it.

A:

A regex_is unrelated to SQL injection (blacklisting etc is never_the strongest approach); however, the use_of the parameter_@Email_means_(assuming it remains parameterised)_that is not susceptible to SQL_injection.
SQL injection relates to inappropriate concatenation_of input; the main tool to fight_it is parameters, which has already_happened here.
For example, if you_did:
var sql_= "SELECT...snip... WHERE Email='" +_email + "'";_// BAD!!!!!

then_that is heavily_susceptible to SQL injection. By using_a parameter, the_value is not treated as part_of_the query, so_the_attacker_does not_have at attack_vector.

A:

If_you use_parameterised_values, you are going to be_fine_regardless, you can not inject via parameters,_only via concatenated values.

A:

You_can_prevent it by not_using Direct SQL and using_parameterised queries and/or Stored Procedures instead.

_Q:

Add multiple_elements to_a single var and detect if any of those are clicked?

I_have a page that can have_one of three possible_elements. I_would_like to assign_whatever_element exists_to a var and then check if_the var_is clicked.
I tried using the add(),_but it has confused_me:
var_testingVar = $('#element-one').find('.object').add('#element-two').find('.object').add('#element-three').find('.object');

$(testingVar ).click(function() {
 _ alert('works');
});

It seems to me that_the add() overwrites the previous_add()?_if_I am on a page_that has #element-three, it works, if_on a page_with element-one or element-two, it doesn't. If_I_change the var to
var testingVar =_$('#element-one').find('.object');

Then_a page with element-one works.
Can