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Drop all tables whose names begin with a certain string
...lution may also delete tables created by SQL Server! My solution below avoids this and deletes tables in foreign key dependency order.
– Tony O'Hagan
Jul 19 '15 at 1:15
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how to show progress bar(circle) in an activity having a listview before loading the listview with d
...rminateVisibility(true);
And after you are done displaying the list, to hide it.
setProgressBarIndeterminateVisibility(false);
IN THE LAYOUT (The XML)
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:orien...
PostgreSQL Autoincrement
...
Yes, SERIAL is the equivalent function.
CREATE TABLE foo (
id SERIAL,
bar varchar);
INSERT INTO foo (bar) values ('blah');
INSERT INTO foo (bar) values ('blah');
SELECT * FROM foo;
1,blah
2,blah
SERIAL is just a create table time macro around sequences. You can not alter SERIAL...
Is it possible to rename a maven jar-with-dependencies?
...property to give the jar the name you want, and specify that appendAssemblyId should be false to avoid the "jar-with-dependencies" suffix.
The configuration below will output a jar called "test.jar"
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.2-be...
SQL Joins Vs SQL Subqueries (Performance)?
...vary. The speed will depend a lot on indexes (do you have indexes on both ID columns? That will help a lot...) among other things.
The only REAL way to tell with 100% certainty which is faster is to turn on performance tracking (IO Statistics is especially useful) and run them both. Make sure to...
How can I exclude some folders from my Eclipse project?
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Filters will hide resources from view, but they're still in the project.
If you create a project in another location you can create linked resources to the folders you want to include in your project.
For reference I posted another answer...
Inserting data into a temporary table
...
INSERT INTO #TempTable (ID, Date, Name)
SELECT id, date, name
FROM physical_table
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postgresql: INSERT INTO … (SELECT * …)
...te database and fetch result. For example:
psql dbtest
CREATE TABLE tblB (id serial, time integer);
INSERT INTO tblB (time) VALUES (5000), (2000);
psql postgres
CREATE TABLE tblA (id serial, time integer);
INSERT INTO tblA
SELECT id, time
FROM dblink('dbname=dbtest', 'SELECT id, time FRO...
find() with nil when there are no records
...
Yes, just do:
Challenge.find_by_id(10)
For Rails 4 and 5:
Challenge.find_by(id: 10)
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How to round an image with Glide library?
So, anybody know how to display an image with rounded corners with Glide?
I am loading an image with Glide, but I don't know how to pass rounded params to this library.
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