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Django CharField vs TextField
...lied.
for TextField(description) the field is defined as a longtext
ALTER TABLE `sometable_sometable` ADD COLUMN `description` longtext NULL;
The maximum length of TextField of MySQL is 4GB according to string-type-overview.
for CharField(title) the max_length(required) is defined as varchar(64)
...
How can I see the SQL generated by Sequelize.js?
...I need to check if they are correct. In particular, I am interested in the table creation commands.
4 Answers
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PHP date() format when inserting into datetime in MySQL
...nsforming it by using the FROM_UNIXTIME function.
mysql> insert into a_table values(FROM_UNIXTIME(1231634282));
Query OK, 1 row affected (0.00 sec)
mysql> select * from a_table;
+---------------------+
| a_date |
+---------------------+
| 2009-01-10 18:38:02 |
+----------------...
iOS: Multi-line UILabel in Auto Layout
...
This is the only answer that worked for me within a Table View Cell. Also works with a fixed number of rows (instead of 0/unlimited)
– bgolson
Nov 19 '14 at 22:18
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Unable to set data attribute using jQuery Data() API
...y="vader"></div>
<a href="#" id="changeData"></a>
<table id="log">
<tr><th>Setter</th><th>Getter</th><th>Result of calling getter</th><th>Notes</th></tr>
</table>
JavaScript (jQuery 1.6.2+)
var $chang...
Convert Linq Query Result to Dictionary
...
Try using the ToDictionary method like so:
var dict = TableObj.ToDictionary( t => t.Key, t => t.TimeStamp );
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ActiveRecord.find(array_of_ids), preserving order
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for me chaining don't work. Here tables name should be added before id:text like this: ["position((',' || somethings.id::text || ',') in ?)", ids.join(',') + ','] full version that worked for me: scope :for_ids_with_order, ->(ids) { order = sanitize_...
What is the use of hashCode in Java?
...hashCode() is used for bucketing in Hash implementations like HashMap, HashTable, HashSet, etc.
The value received from hashCode() is used as the bucket number for storing elements of the set/map. This bucket number is the address of the element inside the set/map.
When you do contains() it will t...
HashMap get/put complexity
...answer. Would you please provide links like this wikipedia entry for hash table in your answer? That way, the more interested reader could get to the nitty gritty of understanding why you gave your answer.
– David Weiser
Dec 29 '10 at 15:19
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How to check for Is not Null And Is not Empty string in SQL server?
...ause. As NULL will evaluate as UNKNOWN for these rather than TRUE.
CREATE TABLE T
(
C VARCHAR(10)
);
INSERT INTO T
VALUES ('A'),
(''),
(' '),
(NULL);
SELECT *
FROM T
WHERE C <> ''
Returns just the single row A. I.e. The row...