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Positive Number to Negative Number in JavaScript?
...the ~ bitwise operator.
For example, if you have a = 1000 and you need to convert it to a negative, you could do the following:
a = ~a + 1;
Which would result in a being -1000.
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Search All Fields In All Tables For A Specific Value (Oracle)
...based on
what I think it should be named but it
returned no results.*
SELECT * from dba_objects WHERE
object_name like '%DTN%'
A column isn't an object. If you mean that you expect the column name to be like '%DTN%', the query you want is:
SELECT owner, table_name, column_name FROM all_tab...
how to exclude null values in array_agg like in string_agg using postgres?
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SQL Fiddle
select
id,
(select array_agg(a) from unnest(canonical_users) a where a is not null) canonical_users,
(select array_agg(a) from unnest(non_canonical_users) a where a is not null) non_canonical_users
from (
SELE...
How to determine equality for two JavaScript objects?
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If the object(s) can be converted to a JSON string, then it makes an equals() function simple.
– scotts
Nov 14 '12 at 18:28
3
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How to calculate the bounding box for a given lat/lng location?
...2deg(lonMin), rad2deg(latMax), rad2deg(lonMax))
EDIT: The following code converts (degrees, primes, seconds) to degrees + fractions of a degree, and vice versa (not tested):
def dps2deg(degrees, primes, seconds):
return degrees + primes/60.0 + seconds/3600.0
def deg2dps(degrees):
intdeg ...
Get record counts for all tables in MySQL database
...get the count of rows in all tables in a MySQL database without running a SELECT count() on each table?
19 Answers
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Create a temporary table in a SELECT statement without a separate CREATE TABLE
Is it possible to create a temporary (session only) table from a select statement without using a create table statement and specifying each column type? I know derived tables are capable of this, but those are super-temporary (statement-only) and I want to re-use.
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Format date to MM/dd/yyyy in JavaScript [duplicate]
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@Ore4444, you are converting month to string before you add 1, that's why @Code Monkey says you are returning 15 instead of six. It should be var month = (1 + date.getMonth()).toString();
– Moses Machua
J...
selecting unique values from a column
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Use the DISTINCT operator in MySQL:
SELECT DISTINCT(Date) AS Date FROM buy ORDER BY Date DESC;
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Hexadecimal To Decimal in Shell Script
Can someone help me to convert a hexadecimal number to decimal number in a shell script?
6 Answers
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