大约有 47,000 项符合查询结果（耗时：0.0328秒） [XML]
How to get the max of two values in MySQL?
...
Use GREATEST()
E.g.:
SELECT GREATEST(2,1);
Note: Whenever if any single value contains null at that time this function always returns null (Thanks to user @sanghavi7)
s...
What is :: (double colon) in Python when subscripting sequences?
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TL;DR
This visual example will show you how to a neatly select elements in a NumPy Matrix (2 dimensional array) in a pretty entertaining way (I promise). Step 2 below illustrate the usage of that "double colons" :: in question.
(Caution: this is a NumPy array specific example with...
File Upload in WebView
... ValueCallback<Uri[]> uploadMessage;
public static final int REQUEST_SELECT_FILE = 100;
private final static int FILECHOOSER_RESULTCODE = 1;
Modified onActivityResult()
@Override
public void onActivityResult(int requestCode, int resultCode, Intent intent)
{
if(Build.VERSION.SDK_INT >= ...
best way to add license section to iOS settings bundle
...save it to the root of your project.
Expand the Settings.bundle group and select Root.plist. You will need to add a new section where its key will be Preference Items of type Array. Add the following information:
The Filename key points to the plist that was created by this script. You can cha...
SQL Server - copy stored procedures from one db to another
...
Right click on database
Tasks
Generate Scripts
Select the objects you wish to script
Script to File
Run generated scripts against target database
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How do I detect “shift+enter” and generate a new line in Textarea?
...tarea, in characters, from the start?
function getCaret(el) {
if (el.selectionStart) {
return el.selectionStart;
} else if (document.selection) {
el.focus();
var r = document.selection.createRange();
if (r == null) {
return 0;
}
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App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎 ...
...允许您修改数据库以使其兼容。
此设置会影响各种 Select 方法返回结果行的方式。
当此属性为 false 时，Select 方法返回的列表中的每个元素将是一个简单的值列表，这些值表示为每个匹配行选择的列的值。
当此属性为 true ...
Phonegap Cordova installation Windows
... settings on the left.
Click Environment Variables under the Advanced tab.
Select the PATH variable and click Edit.
Copy the path mentioned above to the value field and press OK.
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How do I query using fields inside the new PostgreSQL JSON datatype?
... a comments below.
The answer to the original question in Postgres 9.3:
SELECT *
FROM json_array_elements(
'[{"name": "Toby", "occupation": "Software Engineer"},
{"name": "Zaphod", "occupation": "Galactic President"} ]'
) AS elem
WHERE elem->>'name' = 'Toby';
Advanced example:
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How to define Gradle's home in IDEA?
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you will see "Import gradle project" message on the right bottom. click.
select "Use default gradle wrapper". not "Use local gradle distribution"
That's all.
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