# General syntax:
# grep(<pattern>, <character vector>)
mystring <- c('The number 5',
'The number 8',
'1 is the loneliest number',
'Company, 3 is',
'Git SSH tag is [email protected]',
'My personal site is w...
it often happened some rows with format issue, data type issue rejected by copy command while try load it by copy command. the query return succeed but some of data rejected.
To do troubleshooting
save Rejected Data and Exceptions
COPY large_tbl FROM :file1 ON site01,
:file2 O...
This solution is more involved, leveraging custom TypeScript decorators which inject match, history and/or location data into your React.Component class, which gets you full type safety without needing any type guards, as the previous example required.
// Routed.ts - defines decorators
import { Ro...
@SpringBootApplication
@RestController
public class SpringBootJdbcApplication {
@Autowired
private JdbcTemplate template;
@RequestMapping("/cars")
public List<Map<String,Object>> stocks(){
return template.queryForList("select * from c...
The example below uses the input statement to read a value from a source (in this case the string 123) into a both a character destination and a numeric destination.
data test;
source = '123';
numeric_destination = input(source, best.);
character_destination = input(source, $3.);
run;
...
The NamedParameterJdbcTemplate class adds support for programming
JDBC statements using named parameters, as opposed to programming JDBC
statements using only classic placeholder ( '?') arguments. The
NamedParameterJdbcTemplate class wraps a JdbcTemplate, and
delegates to the wrapped JdbcTempl...
Once you are connected to a Gatt Server, you're going to be interacting with it by writing and reading from the server's characteristics. To do this, first you have to discover what services are available on this server and which characteristics are avaiable in each service:
@Override
public voi...
Common Lisp has 12 type specific operators to compare two characters, 6 of them case sensitives and the others case insensitives. Their names have a simple pattern to make easy to remember their meaning:
Case SensitiveCase InsensitiveCHAR=CHAR-EQUALCHAR/=CHAR-NOT-EQUALCHAR<CHAR-LESSPCHAR<=CHA...
Example of a TCA field configuration where you can select records from a table
'my_topfeatures' => array(
'label' => 'Select Topfeatures',
'config' => array(
'type' => 'group',
'internal_type' => 'db',
'size' => '4',
...
When generating new Angular 2 components in a .NET Core project, you may run into the following errors (as of version 0.8.3):
Error locating module for declaration
SilentError: No module files found
OR
No app module found. Please add your new Class to your component.
Identica...
This is how you can react to exceptions which have not been catched, similar to the system's standard "Application XYZ has crashed"
import android.app.Application;
import android.util.Log;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.text....
In find and findstr, there are some special characters that require some caution on it.
FIND
There is only one character that needs escaping - " quote. To escape it, simply add another quote next to it. So " becomes "". Pretty simple.
FINDSTR
Findstr comes with plenty of ...
FOR /F
In a FOR /F statement, some characters needs escaping, here a list(taken and edited from Rob van der Woude's page)
CharacterEscaped ResultRemarks'^'Only needed in FOR /F's brackets, unless usebackq is specified.`^`Only needed in FOR /F's brackets, when usebackq is specified,^,┒;^;┃=^=┣ Must...
Here is a list of other special character(s), that require(s)/may need escaping, but not mentioned above.
CharacterEscaped ResultRemarks%%%[LF]^[LF]This trick is metioned by Mark Stang in the alt.msdos.batch news group.
Let's say Joe owns a website that allows you to log on, view puppy videos, and save them to your account.
Whenever a user searches on that website, they are redirected to https://example.com/search?q=brown+puppies.
If a user's search doesn't match anything, than they see a message along the lines ...
In this Stack Overflow question, user txtechhelp found an issue with the ^ character which could cause a security issue.
Cause
anyInvaildCommand ^
Note: Make sure the caret(^) is the last character! Any extra CR\LF won't work at all!
The caret looks for the next character to escape. However,...
.* in regex basically means "catch everything until the end of input".
So, for simple strings, like hello world, .* works perfectly. But if you have a string representing, for example, lines in a file, these lines would be separated by a line separator, such as \n (newline) on Unix-like s...
You can read all items either from any config file or type it inline.
Considering if its saved in Config File
// Read all list items from config file
string[] countryDV = ConfigurationManager.AppSettings["countryDV"].Split(',').Select(s => s.Trim().ToUpper()).ToArray();
int DVRowLim...
Approach in this case will be different than previous example because Excel file supports the Data validation for list of items with total character count less than 256 if all items are binded directly as in previous example. But in many situation list items can be longer than 256 characters and in ...
