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oracle:完整剖析PL/SQL DEVELOPER与SQL PLUS字符集设置 - 数据库(内核) - ...
...的'unicode support'
该选项的说明是：
Unicode enabled.
When selected, Unicode data will be fetched as such from the Oracle Server, and displayed as Unicode text. When disabled, Unicode data from the server will be converted to the character set of the Oracle Client, in accordance with t...
mysql: see all open connections to a given database?
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That should do the trick for the newest MySQL versions:
SELECT * FROM INFORMATION_SCHEMA.PROCESSLIST WHERE DB = "elstream_development";
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How to “set a breakpoint in malloc_error_break to debug”
...Navigator or ⌘8), clicking the plus button in the lower left corner, and selecting "Add Symbolic Breakpoint". In the popup that comes up, enter malloc_error_break in the Symbol field, then click Done.
EDIT: openfrog added a screenshot and indicated that he's already tried these steps without succe...
How do you log all events fired by an element in jQuery?
...ouse'); // logs mouse events on the body
monitorEvents(document.body.querySelectorAll('input')); // logs all events on inputs
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Get element inside element by class and ID - JavaScript
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Well, first you need to select the elements with a function like getElementById.
var targetDiv = document.getElementById("foo").getElementsByClassName("bar")[0];
getElementById only returns one node, but getElementsByClassName returns a node list...
Where are iOS simulator screenshots stored?
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In the Organizer view just right-click a screenshot and select "Show in Finder...".
This will open the screenshots folder in the Finder for you.
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Altering column size in SQL Server
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Select table--> Design--> change value in Data Type shown in following Fig.
Save tables design.
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Android ClassNotFoundException: Didn't find class on path
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This following method worked for me
Right click on your project and select properties
The "Properties for " panel will open. From the menu on the left go to Java Build Path -> Order and Export
From the list below uncheck the box next to "Android Dependencies"
Finally clean your project and...
Why does Windows64 use a different calling convention from all other OSes on x86-64?
... RAX (return value) and RCX, RDX, R8, R9 (arg[0..3]) are an understandable selection if you choose four registers for arguments.
I don't know why the AMD64 UN*X ABI chose RDX before RCX.
Choosing six argument registers on x64 - UN*X specific
UN*X, on RISC architectures, has traditionally done argume...
No internet on Android emulator - why and how to fix? [closed]
...Names.
Press menu button. an option menu will appear.
from the option menu select New APN.
Click on Name. provide name to apn say My APN.
Click on APN. Enter www.
Click on Proxy. enter your proxy server IP. you can get it from internet explorers internet options menu.
click on Port. enter port numbe...