Use CASE in WHERE clause - Data Parameters Sql Server -

-

i'm trying verify example, if date null pick date field. below query:

select     *     orderpublish op     inner join advertising ad on         ad.idorderpublish = op.idorderpublish     inner join client cli on         cli.idclient = op.idclient     left join advertisinginserted aii on         ad.idadvertisinginserted = aii.idadvertisinginserted     left join typeproduct tp on         aii.idtypeproduct = tp.idtypeproduct     inner join publication pub on         pub.idadvertisinginserted = aii.idadvertisinginserted     tp.idtypeproduct in (5,7)     , case when pub.dtini null                     op.dtinc >= isnull('08/18/2013', op.dtinc)         else             pub.dtini >= isnull('08/18/2013', pub.dtini)         end     , case pub.dtfinal when null                     op.dtinc <= isnull('08/23/2013', op.dtinc)         else             pub.dtfinal <= isnull('08/23/2013', pub.dtfinal)         end

you can coalesce() in case, if want use case in where criteria can so. move matching criteria outside case statement, need case statement return values compared, not comparison itself. requires doubling each case statement:

select     *     orderpublish op     inner join advertising ad on         ad.idorderpublish = op.idorderpublish     inner join client cli on         cli.idclient = op.idclient     left join advertisinginserted aii on         ad.idadvertisinginserted = aii.idadvertisinginserted     left join typeproduct tp on         aii.idtypeproduct = tp.idtypeproduct     inner join publication pub on         pub.idadvertisinginserted = aii.idadvertisinginserted     tp.idtypeproduct in (5,7)     , case when pub.dtini null                     op.dtinc         else             pub.dtini          end     >=  case when pub.dtini null                     isnull('08/18/2013', op.dtinc)         else             isnull('08/18/2013', pub.dtini)         end      , case pub.dtfinal when null                     op.dtinc          else             pub.dtfinal          end     <= case pub.dtfinal when null                     isnull('08/23/2013', op.dtinc)         else             isnull('08/23/2013', pub.dtfinal)         end

that's how can use case statement in where criteria, use and () , or () criteria along coalesce() without case

also, isnull() statements backwards, '08/18/2013' never null, field won't evaluated, mean: isnull(op.dtinc,'08/23/2013')


Comments

Post a Comment

Popular posts from this blog

java - activate/deactivate sonar maven plugin by profile? -

-
i use sonar plugin executes if activated in maven profile. sonar runs on every compile. the problem build fail other team members not have sonar application installed locally. pom.xml checked in team members same copy including sonar configuration, don't want them modify purpose of disabling sonar (they might inadvertently check modified copy in). please advise how configure maven (.m2/settings.xml) and/or pom.xml sonar feature can enabled/disabled local profile. here sonar configuration in each project's pom.xml: <plugin> <groupid>org.codehaus.mojo</groupid> <artifactid>sonar-maven-plugin</artifactid> <version>1.0</version> <executions> <execution> <id>make-sonar</id> <phase>compile</phase> <goals> <goal>sonar</goal> </goals> </execution> </executions> ...
Read more

python - TypeError: can only concatenate tuple (not "float") to tuple -

-
i'm new python, question might easy, anyway, patience: as trying call newton-raphson method calculate implied volatility in black-scholes formula call/put option pricing, first thing is, newton method in scipy.optimize seems calculate function's zeros, in black-scholes formula, want function's value option price, not zero. (i'm new here programming, i'm not sure techniques.) should write function things like: def f(sigma, price): return bsformula(s0,k,r,t,q,sigma) - price then, while calling newton method, takes args=() 1 parameter in function, write this: value = newton(bsprice2, 0.5, args=price) but error message: file "bs.py", line 36, in bsimpvol value = newton(bsprice2, 0.5, args=float(price)) file "/usr/lib/python2.7/dist-packages/scipy/optimize/zeros.py", line 143, in newton q0 = func(*((p0,) + args)) typeerror: can concatenate tuple (not "float") tuple could tell me why that? how fix it? apprecia...
Read more

java - What is the difference between String. and String.this. ? -

-
this question has answer here: meaning of .this , .class in java 2 answers i'll straight point. im still learning bit of syntax , want know difference between code is code a: public class buttonz extends jbutton{ public buttonz(){ settext(new string(string.valueof(i))); } } please ignore fact i undeclared, not lost. code b: public class buttonz extends jbutton{ public buttonz(){ settext(new string(string.this.charat(i))); } } what don't yet understand difference in typing string.this , string. i under assumption when use dot operator on class accessing it's static methods(and/or variables if they're not hidden). i have studied little bit , have concluded when using string. accessing string static methods.. when using string.this. i'm accessing methods class buttonz extendi...
Read more