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Fastest check if row exists in PostgreSQL
I have a bunch of rows that I need to insert into table, but these inserts are always done in batches. So I want to check if a single row from the batch exists in the table because then I know they all were inserted.
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Reintegrate can only be used if revisions X through Y were previously merged from to reintegra
...06
Error:
Error:
Error: branches/myproject/userdata/create_audit_tables_triggers_uds.sql
Error:
Error: Missing ranges:
Error: /trunk/userdata/create_audit_tables_triggers_uds.sql:18406
"@ -split "`n" |
? { $_ -match ('Error: +branches') } |
% { $_.Substring($_.IndexOf('userda...
PDO closing connection
... to keep in mind when using persistent connections. One is that when using table locking on a persistent connection, if the script for whatever reason cannot release the lock, then subsequent scripts using the same connection will block indefinitely and may require that you either restart the httpd ...
Build an ASCII chart of the most commonly used words in a given text [closed]
... C:\WINDOWS\system32\A */
/*Recursive common table expression to
generate a table of numbers from 1 to string length
(and associated characters)*/
WITH N AS
(SELECT 1 i,
LEFT(@,1)L
UNION ALL
SELECT i+1,
SUBSTRING(@,i+1,1)
F...
How to get disk capacity and free space of remote computer
...omputers (input from the PowerShell pipeline) and displays the output in a table format with numeric values in human-readable form:
PS> $cred = Get-Credential -Credential 'example\administrator'
PS> 'db01','dc01','sp01' | Get-DiskFree -Credential $cred -Format | Format-Table -GroupBy Name -Au...
Proper Repository Pattern Design in PHP?
... basic controller for viewing and editing Users.
All code must be fully testable and mockable.
The controller should have no idea where the data is stored (meaning it can be changed).
Example to show a SQL implementation (most common).
For maximum performance, controllers should only receive the dat...
is there a post render callback for Angular JS directive?
...
Humm, try something like: <table id="bob"><tbody dashboard-table="#bob"></tbody></table> Then in your link, do $(attrs.dashboardTable).dataTable() to make sure it's being selected right. Or I guess you already tried that.. I'm real...
Pull to refresh UITableView without UITableViewController
I'm trying to implement a pull to refresh feature in a UITableView within a UIViewController. I can't use a UITableViewController because I want the UITableView to be a smaller subview in the view controller, with some other stuff above it. I assume this is possible, but has anyone seen an implement...
Is a view faster than a simple query?
...y referenced by another query as the optimizer will use them in place of a table reference when appropriate.
Again, the documentation:
The indexed view can be used in a query execution in two ways. The query can reference the indexed view directly, or, more importantly, the query optimizer c...
multiprocessing: How do I share a dict among multiple processes?
...re my own work that is faster than Manager's dict and is simpler and more stable than pyshmht library that uses tons of memory and doesn't work for Mac OS. Though my dict only works for plain strings and is immutable currently.
I use linear probing implementation and store keys and values pairs in a...