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01_Real Application Clusters Overview - 文档下载 - 清泛网移动版 - 专注C/C++及内核技术
01_Real Application Clusters OverviewOracle-Real-Application-Clusters-Overview01_Real Application Clusters OverviewOracle集群介绍。RAC：真正应用集群Oracle集群介绍
RAC：真正应用集群
ASM管理存储，Oracle自己的文件系统
心跳ip有问题，关闭次节点只留主节...
01_Real Application Clusters Overview - 文档下载 - 清泛网 - 专注C/C++及内核技术
01_Real Application Clusters OverviewOracle-Real-Application-Clusters-Overview01_Real Application Clusters OverviewOracle集群介绍。RAC：真正应用集群Oracle集群介绍
RAC：真正应用集群
ASM管理存储，Oracle自己的文件系统
心跳ip有问题，关闭次节点只留主节...
Is there a way to include commas in CSV columns without breaking the formatting?
...
Enclose the field in quotes, e.g.
field1_value,field2_value,"field 3,value",field4, etc...
See wikipedia.
Updated:
To encode a quote, use ", one double quote symbol in a field will be encoded as "", and the whole field will become """". So if you see the follow...
How to read json file into java with simple JSON library
... = new String(Files.readAllBytes(Paths.get(fileName)), StandardCharsets.UTF_8);
JSONObject obj = new JSONObject(text);
JSONArray arr = obj.getJSONArray("employees");
for(int i = 0; i < arr.length(); i++){
String name = arr.getJSONObject(i).get...
How to get a random number in Ruby
... for a full blown framework:
require 'securerandom'
p SecureRandom.random_number(100) #=> 15
p SecureRandom.random_number(100) #=> 88
p SecureRandom.random_number #=> 0.596506046187744
p SecureRandom.random_number #=> 0.350621695741409
p SecureRandom.hex #=> "eb693ec8252cd630102fd...
How to escape single quotes within single quoted strings
...uotes and double quotes in the alias string!
– Uphill_ What '1
Jun 1 '11 at 10:09
19
...
What's the recommended way to connect to MySQL from Go?
... on go-wiki.
Import when using MyMySQL :
import (
"database/sql"
_ "github.com/ziutek/mymysql/godrv"
)
Import when using Go-MySQL-Driver :
import (
"database/sql"
_ "github.com/go-sql-driver/mysql"
)
Connecting and closing using MyMySQL :
con, err := sql.Open("mymysql", datab...
A cron job for rails: best practices?
...> :environment do
puts "Pulling new requests..."
EdiListener.process_new_messages
puts "done."
end
To execute from the command line, this is just "rake cron". This command can then be put on the operating system cron/task scheduler as desired.
Update this is quite an old question and ans...
Can't use Swift classes inside Objective-C
...wift enum
ObjcClass.h
#import <Foundation/Foundation.h>
typedef NS_ENUM(NSInteger, ObjcEnum) {
ObjcEnumValue1,
ObjcEnumValue2,
ObjcEnumValue3
};
@interface ObjcClass : NSObject
+ (void) PrintEnumValues;
@end
ObjcClass.m
#import "ObjcClass.h"
#import "SwiftCode.h"
@impleme...
Prevent browser caching of AJAX call result
... multiple requests happening within the same millisecond:
$.get('/getdata?_=' + new Date().getTime(), function(data) {
console.log(data);
});
Edit: This answer is several years old. It still works (hence I haven't deleted it), but there are better/cleaner ways of achieving this now. My prefe...