...ECT date FROM dates WHERE date BETWEEN '2010-01-20' AND '2010-01-24' ORDER BY date Update It is worth noting that you will only be able to generate past dates starting from the current date. If you want to generate any kind of dates range (past, future, and in between), you will have to u...

... The assignment does not remove the newline characters, it's actually the echo doing this. You need simply put quotes around the string to maintain those newlines: echo "$testvar" This wil give the result you want. See the following transcript for a demo: pax> cat num1.txt ; x=$(cat...

...t depends on the relative positioning of the elements. Once you change the order you can no longer find the first and third by their ids and need to work out another way. My answer was only meant to illustrate the functionality of the methods to accomplish the requested task, not be a comprehensive ...

...d. We are referring to those cases that synchronization is necessary. In order to synchronize the threads in a multi-threaded program, we'll use lock. When the access is required to be restricted by only one thread at a time, locks come into play. The lock concept implementation may vary from proc...

... Argh... horrible, horrible unpythonic code. Don't write PHP code in Python: it's not an array, it's a dictionary (you may call it a hash, but array is right out). And: dicts already have your "keyCheck" function: instead of "keyCheck('key1', myarray, '#default')" you'd do "mydic...

...little confused about CSS and the class attribute. I always thought, the order in which I specify multiple classes in the attribute value has a meaning. The later class could/should overwrite definitions of the previous, but this doesn't seem to work. Here's an example: ...

... If these are elements naturally in the tab order like buttons and anchors, removing them from the tab order with tabindex=-1 is kind of an accessibility smell. If they're providing duplicate functionality removing them from the tab order is ok, and consider adding ari...

...t *, you get whatever is in the table. Those columns may change names and order. Client code frequently relies on names and order. Every 6 months I'm asked how to preserve column order when modifying a table. If the rule was followed it wouldn't matter. – Amy B ...

...on" in the PostgreSQL Wiki says: PostgreSQL currently defines column order based on the attnum column of the pg_attribute table. The only way to change column order is either by recreating the table, or by adding columns and rotating data until you reach the desired layout. That's ...

... The first has to do with controlling when code executes (including the order in which instructions are executed) and whether it can execute concurrently, and the second to do with when the effects in memory of what has been done are visible to other threads. Because each CPU has several levels ...