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Which timestamp type should I choose in a PostgreSQL database?
... (
my_timestamp TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
CHECK(EXTRACT(TIMEZONE FROM my_timestamp) = '0')
);
test=> SET timezone = 'America/Los_Angeles';
SET
test=> INSERT INTO my_tbl (my_timestamp) VALUES (NOW());
ERROR: new row for relation "my_tbl" violates check constraint "my...
Checking for NULL pointer in C/C++ [closed]
...ad and more explicit. I see where they're coming from, I just disagree the extra stuff makes it any easier. (I hate the macro, so I'm biased.) Up to you.
I disagree with your argument. If you're not getting warnings for assignments in a conditional, you need to turn your warning levels up. Simple a...
Five equal columns in twitter bootstrap
...
Update 2019
Bootstrap 4.1+
Here are 5 equal, full-width columns (no extra CSS or SASS) using the auto-layout grid:
<div class="container-fluid">
<div class="row">
<div class="col">1</div>
<div class="col">2</div>
<div class="...
What is the difference among col-lg-*, col-md-* and col-sm-* in Bootstrap?
...
Bootstrap 3
The Bootstrap 3 grid comes in 4 tiers (or "breakpoints")...
Extra small (for smartphones .col-xs-*)
Small (for tablets .col-sm-*)
Medium (for laptops .col-md-*)
Large (for laptops/desktops .col-lg-*).
These grid sizes enable you to control grid behavior on different widths. The diffe...
When should I use the “strictfp” keyword in java?
...latform. If you don't use strictfp, the JVM implementation is free to use extra precision where available.
From the JLS:
Within an FP-strict expression, all
intermediate values must be elements
of the float value set or the double
value set, implying that the results
of all FP-strict e...
Insert results of a stored procedure into a temporary table
... You don't need a linked server, but you would need to get the connection string right...and also, specify the full path to the stored procedure including the database name and the sp's owner.
– MartW
Aug 11 '09 at 12:30
...
Difference between clustered and nonclustered index [duplicate]
... every row in your table. This can be anything, really - an INT, a GUID, a string - pick what makes most sense for your scenario.
2) the clustering key (the column or columns that define the "clustered index" on the table) - this is a physical storage-related thing, and here, a small, stable, ever-...
Number of rows affected by an UPDATE in PL/SQL
...m a plain command, the solution could be:
begin
DBMS_OUTPUT.PUT_LINE(TO_Char(SQL%ROWCOUNT)||' rows affected.');
end;
The basic problem is that SQL%ROWCOUNT is a PL/SQL variable (or function), and cannot be directly accessed from an SQL command. By using a noname PL/SQL block, this can be achiev...
How to detect a loop in a linked list?
... assert nodes[i].next == nodes[i + 1];
}
}
public static void main(String[] args) {
Node[] nodes = new Node[100];
for (int i = 0; i < nodes.length; i++) {
nodes[i] = new Node();
}
for (int i = 0; i < nodes.length - 1; i++) {
nodes[i].next = nodes[i + 1];...
What are the best practices for SQLite on Android?
... new AtomicInteger(0);
public DBSQLiteOpenHelper(Context context, String name, int version, DatabaseManager databaseManager) {
super(context, name, null, version);
this.databaseManager = databaseManager;
}
public void addConnection(){
cou...