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Make column not nullable in a Laravel migration
I'm writing a migration to make certain columns in a table nullable right now. For the down function, I of course want to make those columns not nullable again. I looked through the schema builder docs , but couldn't see a way to do this.
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What is the optimal length for user password salt? [closed]
...ices for how long the salt should be? I'll be storing the salt in my user table, so I would like the best tradeoff between storage size and security. Is a random 10 character salt enough? Or do I need something longer?
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What's the difference between :: (double colon) and -> (arrow) in PHP?
...ate and delete methods, since you can set the return value to the inserted table id and then use the constructor to instantiate the object by the row id.
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Any way to declare a size/partial border to a box?
...g...
Partly underlined text elements can easily achieved by using display:table or display:inline-block
(I just don't use display:inline-block because, yeah you know, the awkward 4px-gap).
Textual Elements
h1 {
border-bottom: 1px solid #f00;
display: table;
}
<h1>Foo is not equ...
How can I make a JPA OneToOne relation lazy
... a proxy object or NULL and it can't determine that by looking at its base table's columns due to one-to-one normally being mapped via shared PK, so it has to be eagerly fetched anyway making proxy pointless. Here's a more detailed explanation.
many-to-one associations (and one-to-many, obviously) d...
Preventing Laravel adding multiple records to a pivot table
...in the array. This way, only the id's given in the array will exist in the table. Brilliant @Barryvdh uses an undocumented second parameter to disable that detaching, so no relationships not in the given array are deleted but only unique id's will be attached. Check out the "syncing for convienence"...
What are naming conventions for MongoDB?
... here. And after so many decades there is still no agreement whether RDBMS tables should be named singular or plural...
MongoDB speaks JavaScript, so utilize JS naming conventions of camelCase.
MongoDB official documentation mentions you may use underscores, also built-in identifier is named _id (bu...
How to select multiple rows filled with constants?
Selecting constants without referring to a table is perfectly legal in an SQL statement:
15 Answers
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How can I get the SQL of a PreparedStatement?
...ke this:
org.hsqldb.jdbc.JDBCPreparedStatement@7098b907[sql=[INSERT INTO
TABLE_NAME(COLUMN_NAME, COLUMN_NAME, COLUMN_NAME) VALUES(?, ?, ?)],
parameters=[[value], [value], [value]]]
Now I've created a method (Java 8), which is using regex to extract both query and values and put them into map:
p...
What is the difference between a schema and a table and a database?
...bably a n00blike (or worse) question. But I've always viewed a schema as a table definition in a database. This is wrong or not entirely correct. I don't remember much from my database courses.
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