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How do I specify unique constraint for multiple columns in MySQL?
...row's user/email/address values, would the INSERT do the actions specified by the ON DUPLICATE KEY clause instead?
– clizzin
May 26 '11 at 2:29
6
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How do I toggle an element's class in pure JavaScript?
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2014 answer: classList.toggle() is the standard and supported by most browsers.
Older browsers can use use classlist.js for classList.toggle():
var menu = document.querySelector('.menu') // Using a class instead, see note below.
menu.classList.toggle('hidden-phone');
As an aside, y...
Querying data by joining two tables in two database on different servers
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If a linked server is not allowed by your dba, you can use OPENROWSET. Books Online will provide the syntax you need.
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How to check if field is null or empty in MySQL?
...>=''',FROMDATE ,''' AND t.entdt<=''',TODATE ,''' ',VTYPE,'
ORDER BY CAST(ENTDT AS DATE)) AS ta
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Programmatically set left drawable in a TextView
...s
Example for Drawable on the left:
TextView textView = (TextView) findViewById(R.id.myTxtView);
textView.setCompoundDrawablesWithIntrinsicBounds(R.drawable.icon, 0, 0, 0);
Alternatively, you can use setCompoundDrawablesRelativeWithIntrinsicBounds to respect RTL/LTR layouts.
Tip: Whenever you know...
How do I keep two side-by-side divs the same height?
I have two divs side by side. I'd like the height of them to be the same, and stay the same if one of them resizes. I can't figure this one out though. Ideas?
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How do I force Postgres to use a particular index?
...tgreSQL doesn't provide such a feature. This was a conscious decision made by the PostgreSQL team. A good overview of why and what you can do instead can be found here. The reasons are basically that it's a performance hack that tends to cause more problems later down the line as your data changes, ...
How to have an automatic timestamp in SQLite?
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you can use the custom datetime by using...
create table noteTable3
(created_at DATETIME DEFAULT (STRFTIME('%d-%m-%Y %H:%M', 'NOW','localtime')),
title text not null, myNotes text not null);
use 'NOW','localtime' to get the current system date els...
How does JPA orphanRemoval=true differ from the ON DELETE CASCADE DML clause
... collection in the Post entity is mapped as follows:
@OneToMany(
mappedBy = "post",
cascade = CascadeType.ALL,
orphanRemoval = true
)
private List<Comment> comments = new ArrayList<>();
CascadeType.ALL
The cascade attribute tells the JPA provider to pass the entity state tr...
How to write an XPath query to match two attributes?
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...