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How to Join to first row
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Excellent, that works; moving TOP 1 from derived table clause to join clause.
– Ian Boyd
Jan 11 '10 at 16:54
111
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typecast string to integer - Postgres
I am importing data from a table which has raw feeds in Varchar, I need to import a column in varchar into a string column. I tried using the <column_name>::integer as well as to_number(<column_name>,'9999999') but I am getting errors, as there are a few empty fields, I need to retri...
Insert current date in datetime format mySQL
...re the current time just use MYSQL's functions.
mysql_query("INSERT INTO `table` (`dateposted`) VALUES (now())");
If you need to use PHP to do it, the format it Y-m-d H:i:s so try
$date = date('Y-m-d H:i:s');
mysql_query("INSERT INTO `table` (`dateposted`) VALUES ('$date')");
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Fastest Way to Find Distance Between Two Lat/Long Points
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Create your points using Point values of Geometry data types in MyISAM table. As of Mysql 5.7.5, InnoDB tables now also support SPATIAL indices.
Create a SPATIAL index on these points
Use MBRContains() to find the values:
SELECT *
FROM table
WHERE MBRContains(LineFromText(CONCAT(
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How to customize the background color of a UITableViewCell?
...ike to customize the background (and maybe the border too) of all of the UITableViewCells within my UITableView. So far I have not been able to customize this stuff, so I have a bunch of white background cells which is the default.
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Div width 100% minus fixed amount of pixels
How can I achieve the following structure without using tables or JavaScript? The white borders represent edges of divs and aren't relevant to the question.
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初窥InnoDB的Memcached插件 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...件所需要的配置信息：
mysql> USE innodb_memcache
mysql> SHOW TABLES;
+---------------------------+
| Tables_in_innodb_memcache |
+---------------------------+
| cache_policies |
| config_options |
| containers |
+---------------------------+
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PHP MySQL Google Chart JSON - Complete Example
...hed a lot to find a good example for generating a Google Chart using MySQL table data as the data source. I searched for a couple of days and realised that there are few examples available for generating a Google Chart (pie, bar, column, table) using a combination of PHP and MySQL. I finally managed...
Calendar Recurring/Repeating Events - Best Storage Method
...g on a Tuesday and every week starting on a Thursday.
Assuming I have two tables, one called events like this:
ID NAME
1 Sample Event
2 Another Event
And a table called events_meta like this:
ID event_id meta_key meta_value
1 1 repeat_start 129...
Finding duplicate values in a SQL table
...till requires all non-aggregated columns in the GROUP BY.
MySQL is unpredictable and you need sql_mode=only_full_group_by:
GROUP BY lname ORDER BY showing wrong results;
Which is the least expensive aggregate function in the absence of ANY() (see comments in accepted answer).
Oracle isn't mainstr...