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Best way to do multi-row insert in Oracle?
...his isn't a one off, its worth it.
Create Table
SQL> create table ldr_test (id number(10) primary key, description varchar2(20));
Table created.
SQL>
Create CSV
oracle-2% cat ldr_test.csv
1,Apple
2,Orange
3,Pear
oracle-2%
Create Loader Control File
oracle-2% cat ldr_test.ctl
load dat...
Why are static variables considered evil?
... variables represent global state. That's hard to reason about and hard to test: if I create a new instance of an object, I can reason about its new state within tests. If I use code which is using static variables, it could be in any state - and anything could be modifying it.
I could go on for qu...
Regex empty string or email
...
This will match the following email test.test@test. This one is better I think ^$|^[^\s@]+@[^\s@]+\.[^\s@]+$ as it will accept emails like test@test.se
– dont_trust_me
Dec 1 '17 at 9:39
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Case-insensitive search
...earches beyond the first result. You need to stop after first match which .test or .search do. Check performance here.
– Rami
Mar 28 '16 at 22:15
...
What is the difference between visibility:hidden and display:none?
... page. The tag is rendered, it just isn't seen on the page.
For example:
test | <span style="[style-tag-value]">Appropriate style in this tag</span> | test
Replacing [style-tag-value] with display:none results in:
test | | test
Replacing [style-tag-value] with visibility:hidden ...
QuotaExceededError: Dom exception 22: An attempt was made to add something to storage that exceeded
...
I use this simple function, which returns true or false, to test for localStorage availablity:
isLocalStorageNameSupported = function() {
var testKey = 'test', storage = window.sessionStorage;
try {
storage.setItem(testKey, '1');
storage.removeItem(testKey);
...
Function to Calculate Median in SQL Server
...uch faster than all other alternatives, at least on the simple schema they tested. This solution was 373x faster (!!!) than the slowest (PERCENTILE_CONT) solution tested. Note that this trick requires two separate queries which may not be practical in all cases. It also requires SQL 2012 or later....
Use Mockito to mock some methods but not others
...ation.
For your example, you can do something like the following, in your test:
Stock stock = mock(Stock.class);
when(stock.getPrice()).thenReturn(100.00); // Mock implementation
when(stock.getQuantity()).thenReturn(200); // Mock implementation
when(stock.getValue()).thenCallRealMethod(); /...
How to use ArgumentCaptor for stubbing?
...
Assuming the following method to test:
public boolean doSomething(SomeClass arg);
Mockito documentation says that you should not use captor in this way:
when(someObject.doSomething(argumentCaptor.capture())).thenReturn(true);
assertThat(argumentCaptor.g...
Using switch statement with a range of value in each case?
...;& x <= upper;
}
if (isBetween(num, 1, 5)) {
System.out.println("testing case 1 to 5");
} else if (isBetween(num, 6, 10)) {
System.out.println("testing case 6 to 10");
}
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