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How do I add indices to MySQL tables?
...t I don't think it is used while I query my table. Do I have to change the select query when using an index ?
– Ced
Aug 12 '15 at 16:04
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How do I analyze a .hprof file?
...unning a form of limited SQL (OQL) against the in-memory objects, i.e.
SELECT toString(firstName) FROM com.yourcompany.somepackage.User
Totally brilliant.
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How to call methods dynamically based on their name? [duplicate]
... each with their own advantages and disadvantages. Care should be taken to select the most appropriate method for the situation.
The following table breaks down some of the more common techniques:
+---------------+-----------------+-----------------+------------+------------+
| Method | A...
Change Checkbox value without triggering onCheckChanged
... The doc reads "Called when the checked radio button has changed. When the selection is cleared, checkedId is -1". This is really misleading, it should either have the isChecked passed through as well.
– AA_PV
Jan 3 '17 at 22:10
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How do you version your database schema? [closed]
...bles. I then copy the data over from the old database using INSERT INTO x SELECT FROM y and then apply all indexes, constraints and triggers.
New tables, new columns, deleted columns all get handled automatically and with a few little tricks to adjust the copy routine I can handle column renames, ...
Get Enum from Description attribute [duplicate]
...ds = type.GetFields();
var field = fields
.SelectMany(f => f.GetCustomAttributes(
typeof(DescriptionAttribute), false), (
f, a) => new { Field = f, Att = a })
.Where(a => ((De...
How can I benchmark JavaScript code? [closed]
...e the correct answer. I would delete mine, but I can't because it has been selected by the OP. There is much more to benchmarking than just running many iterations, and JSPerf takes care of that for you.
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Java Serializable Object to Byte Array
...tegrate .jar file by clicking:
FileName -> Open Medule Settings -> Select your module -> Dependencies -> Add Jar file and you are done.
Hope this helps.
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How to fix: “HAX is not working and emulator runs in emulation mode”
...result from the menu Tools ➞ SDK Manager, and then on the SDK Tools tab, select the checkbox for Intel x86 Emulator Accelerator (HAXM installer), and click Ok.
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What's the difference between @JoinColumn and mappedBy when using a JPA @OneToMany association
... symmetry in many-to-many relationships and Hibernate has no rationale for selecting one direction over the other.
We therefore use MappedBy to tell Hibernate, we have chosen the other entity to dictate the mapping of the relationship between the two entities.
@Entity
public class Driver {
@Ma...