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Django - How to rename a model field using South?
...e slower than the 'rename_column' that other people have suggested. I know MySQL can do a "ALTER TABLE ... rename column" (or whatever it is) quite quickly.
– Rory
Jul 18 '11 at 10:01
...
Image fingerprint to compare similarity of many images
...on histogram on the canvas and compare that polygon in your database (e.g. mySQL spatial ...)
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Map enum in JPA with fixed values?
...nverter.
Create an enumerated class like so:
public enum NodeType {
ROOT("root-node"),
BRANCH("branch-node"),
LEAF("leaf-node");
private final String code;
private NodeType(String code) {
this.code = code;
}
public String getCode() {
return code;
...
Alter Table Add Column Syntax
... To clarify, the 'COLUMN' keyword is only valid (but not required) in MySQL.
– ethanbustad
Feb 12 '15 at 21:28
4
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Convert form data to JavaScript object with jQuery
...ou're trying to serialize Rails-like forms, you may want to remove element root from the generated keys. To achieve that, I've added a new param keyMap and the following line: key = if keyMap? then keyMap(@name) else @name. Now you can pass mapping function like (name) -> name.match(/\[([^\]]+)]/...
What is the difference between “Class.forName()” and “Class.forName().newInstance()”?
...;
}
But there were also buggy JDBC drivers, starting with the org.gjt.mm.mysql.Driver as well known example, which incorrectly registers itself inside the Constructor instead of a static block:
package com.dbvendor.jdbc;
import java.sql.Driver;
import java.sql.DriverManager;
public class BadDri...
ruby system command check exit code
...capture it as part of your REPL command [10] pry(main)> system("touch /root/test 2> /dev/null") => false [11] pry(main)> $?.exitstatus => 0 [12] pry(main)> system("touch /root/test 2> /dev/null"); $?.exitstatus => 1
– lardcanoe
Mar 9 '1...
How can I get the external SD card path for Android 4.0+?
...nment.getExternalStorageDirectory();
//Retrieve the External Storages root directory:
final String externalStorageRootDir;
if ( (externalStorageRootDir = primaryExternalStorage.getParent()) == null ) { // no parent...
Log.d(TAG, "External Storage: " + primaryExternalStorage + "...
Permission denied on accessing host directory in Docker
...preferred solution is to start the container with an entrypoint running as root, fix the uid/gid of the user inside the container to match the host volume uid/gid, and then use gosu to drop from root to the container user to run the application inside the container. The important script for this is ...
What is the difference between SQL, PL-SQL and T-SQL?
... by almost all relational database management systems: SQL Server, Oracle, MySQL, PostgreSQL, DB2, Informix, etc.
PL/SQL is a proprietary procedural language used by Oracle
PL/pgSQL is a procedural language used by PostgreSQL
TSQL is a proprietary procedural language used by Microsoft in SQL Server....