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Setting up foreign keys in phpMyAdmin?
...in lets you define foreign keys using their "relations" view. But since, MySQL only supports foreign constraints on "INNO DB" tables, the first step is to make sure the tables you are using are of that type.
To setup a foreign key so that the PID column in a table named CHILD references the ID colu...
What is the syntax for “not equal” in SQLite?
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@ban-geoengineering <> is SQL Ansi standard and != is not. Of course <> is more professional
– edc65
Jan 29 '18 at 21:49
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How to fix: “No suitable driver found for jdbc:mysql://localhost/dbname” error when using pools? [du
...1.3/drizzle-jdbc-1.3.jar && wget http://central.maven.org/maven2/mysql/mysql-connector-java/5.1.27/mysql-connector-java-5.1.27.jar
– jmojico
Dec 17 '19 at 16:38
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Force drop mysql bypassing foreign key constraint
...P, but the answer below is actually correct for the question "Force drop mysql bypassing foreign key constraint".
– Val Redchenko
Dec 18 '17 at 12:27
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Rails :include vs. :joins
...ns and include is that using the include statement generates a much larger SQL query loading into memory all the attributes from the other table(s).
For example, if you have a table full of comments and you use a :joins => users to pull in all the user information for sorting purposes, etc it wi...
Access denied for user 'root@localhost' (using password:NO)
I'm new to MySQL, I'm trying to run WordPress in my Windows desktop and it needs MySQL.
16 Answers
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How can I retrieve Id of inserted entity using Entity framework? [closed]
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It is pretty easy. If you are using DB generated Ids (like IDENTITY in MS SQL) you just need to add entity to ObjectSet and SaveChanges on related ObjectContext. Id will be automatically filled for you:
using (var context = new MyContext())
{
context.MyEntities.Add(myNewObject);
context.SaveCh...
Favorite (Clever) Defensive Programming Best Practices [closed]
... to make your code do things it isn't supposed to do. See Buffer Overflow, SQL Injection. Nothing fails faster than a web page under XSS but it ain't pretty
– Jorge Córdoba
Jan 29 '09 at 17:45
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“#include” a text file in a C program as a char[]
... Thanks, I chose the method proposed here to embed long fragments of sql into my C++ 11 code. This allows me to keep the SQL cleantly separated into its own files, and edit them with appropriate syntax checking, highlighting etc.
– YitzikC
Jan 29 '17 at 2...
How do I view the SQLite database on an Android device? [duplicate]
I have a set of data in an SQLite database. I need to view the database on a device. How do I do that?
19 Answers
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