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How do you allow spaces to be entered using scanf?
...ith the additional catch that the \n final isn't read; this will be hidden by that fact that most formats start by skipping white spaces, but [ isn't one of them. I don't understand the instance at using scanf to read strings.
– AProgrammer
Aug 9 '09 at 6:09
...
INSERT IF NOT EXISTS ELSE UPDATE?
...on Confliction from new one. In above case all other data will be replaced by new one that is not correct.
– Mrug
Apr 9 '14 at 11:25
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show ...
How to get unique values in an array
...that was the kind if geeky javascript-nerd answer that should only be used by someone who understands what it means, and possibly not even then. What it is saying, is that writing if (~a.indexOf(b)) ... is identical to writing the longer if (a.indexOf(b) == -1) ....
– Orwellop...
What is a columnar database?
...pt of a column-store is that the values of a table are stored contiguously by column. Thus the classic supplier table from CJ Date's supplier and parts database:
SNO STATUS CITY SNAME
--- ------ ---- -----
S1 20 London Smith
S2 10 Paris Jones
S3 30 Paris Blake
S4 ...
How to stop an unstoppable zombie job on Jenkins without restarting the server?
...nt Jenkins versions. To interrupt frozen pipelines refer to this solution (by alexandru-bantiuc) instead and run:
Jenkins.instance.getItemByFullName("JobName")
.getBuildByNumber(JobNumber)
.finish(
hudson.model.Result.ABORTED,
...
Difference between Destroy and Delete
... Hello @user740584 - thanks for your answer. What do you mean by "runs any callbacks on the model"?
– BKSpurgeon
Mar 10 '16 at 1:23
3
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Difference Between One-to-Many, Many-to-One and Many-to-Many?
... ("I love her, but she doesn't love me")!
All of these are well supported by Hibernate and JPA. Just remember that Hibernate or any other ORM doesn't give a hoot about maintaining symmetry when managing bi-directional many-to-many relationships...thats all up to the application.
...
Regular expression to match URLs in Java
...*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the s...
How to write a simple Html.DropDownListFor()?
... IEnumerable<Color> Colors. Then, on your view, you can reference it by calling HtmlLists.Colors. Hope that makes sense. Let me know. :)
– Evan Nagle
Jun 17 '10 at 1:25
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Difference between rake db:migrate db:reset and db:schema:load
...creating versions of schema. db:migrate will look in db/migrate/ for any ruby files and execute the migrations that aren't run yet starting with the oldest. Rails knows which file is the oldest by looking at the timestamp at the beginning of the migration filename. db:migrate comes with a benefit th...