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Set value to NULL in MySQL
...n the insert query that i was using
$quantity= "NULL";
$itemname = "TEST";
So far so good.
My insert query was bad.
mysql_query("INSERT INTO products(quantity,itemname)
VALUES ('$quantity','$itemname')");
I corrected query to read.
mysql_query("INSERT INTO products(quantity,i...
Why always ./configure; make; make install; as 3 separate steps?
...ult. And every make has different actions to do. Some do building, some do tests after building, some do checkout from external SCM repositories. Usually you don't have to give any parameters, but again some packages execute them differently.
Install to the system
make install
This installs the...
How to draw a dotted line with css?
...of cruft that is no longer required for modern browsers. I have personally tested the following CSS on all browsers as far back as IE8, and it works perfectly.
hr {
border: none;
border-top: 1px dotted black;
}
border: none must come first, to remove all the default border styling that...
How do I select an element with its name attribute in jQuery? [duplicate]
...
jQuery("[name='test']")
Although you should avoid it and if possible select by ID (e.g. #myId) as this has better performance because it invokes the native getElementById.
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How can I shuffle an array? [duplicate]
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Why isn't there a test of i !== j? That should save a bit of time
– Regnoult
Feb 25 '18 at 14:27
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Return HTTP status code 201 in flask
...a user account you would do something like:
return {"data": {"username": "test","id":"fdsf345"}}, 201
Note the postfixed number is the status code returned.
Alternatively, you may want to send a message to the client such as:
return {"msg": "Created Successfully"}, 201
...
Http 415 Unsupported Media type error with JSON
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If you using Postman for testing, try to add this part to the Headers: Content-Type: application/json
– Z3d4s
Oct 4 '19 at 12:03
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Javascript checkbox onChange
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Here's a JsFiddle where all the different ways can be tested: click, keyboard, label and accesskey. They all trigger the event in Firefox.
– Roman Starkov
May 8 '15 at 12:59
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Placing Unicode character in CSS content value [duplicate]
...h "2" is not).
The identifier "te\st" is exactly the same identifier as "test".
Comprehensive list: Unicode Character 'DOWNWARDS ARROW' (U+2193).
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Mysql ibdata 丢失或损坏如何通过frm&ibd 恢复数据 - 更多技术 - 清泛网 - ...
...找到mysql的错误日志，InnoDB: Error: tablespace id in file ‘.\test\weibo_qq0.ibd’ is 112, but in the InnoDB InnoDB: data dictionary it is 1. 因为 weibo_qq0 之前的记录点在112，当前的表只创建一次，所以记录点是1.
d、那怎么从1记录到112。for ($1=1; $...