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How To: Best way to draw table in console app (C#)
... of data changing in very fast intervals.
I want to display that data as a table in console app. f.ex:
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What GRANT USAGE ON SCHEMA exactly do?
...chema within. Similiarly, GRANTing on a schema doesn't grant rights on the tables within.
If you have rights to SELECT from a table, but not the right to see it in the schema that contains it then you can't access the table.
The rights tests are done in order:
Do you have `USAGE` on the schema?...
quick random row selection in Postgres
I have a table in postgres that contains couple of millions of rows. I have checked on the internet and I found the following
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CSS: how do I create a gap between rows in a table?
Meaning making the resultant table look less like this:
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How can I tell when a MySQL table was last updated?
...updated the xx/xx/200x" with this date being the last time a certain mySQL table has been updated.
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Tools to generate database tables diagram with Postgresql? [closed]
Are there any free tools to generate tables diagrams with Postgresql?
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Database Design for Revisions?
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Do not put it all in one table with an IsCurrent discriminator attribute. This just causes problems down the line, requires surrogate keys and all sorts of other problems.
Design 2 does have problems with schema changes. If you change the Employees...
Is 'switch' faster than 'if'?
...ons a compiler can make on a switch. I don't think the oft-mentioned "jump-table" is a very useful one though, as it only works when the input can be bounded some way.
C Pseudocode for a "jump table" would be something like this -- note that the compiler in practice would need to insert some form o...
How to request a random row in SQL?
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See this post: SQL to Select a random row from a database table. It goes through methods for doing this in MySQL, PostgreSQL, Microsoft SQL Server, IBM DB2 and Oracle (the following is copied from that link):
Select a random row with MySQL:
SELECT column FROM table
ORDER BY RAND()...
How to pass table value parameters to stored procedure from .net code
I have a SQL Server 2005 database. In a few procedures I have table parameters that I pass to a stored proc as an nvarchar (separated by commas) and internally divide into single values. I add it to the SQL command parameters list like this:
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