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How to select the nth row in a SQL database table?
... http://troels.arvin.dk/db/rdbms/#select-limit.
Basically, PostgreSQL and MySQL supports the non-standard:
SELECT...
LIMIT y OFFSET x
Oracle, DB2 and MSSQL supports the standard windowing functions:
SELECT * FROM (
SELECT
ROW_NUMBER() OVER (ORDER BY key ASC) AS rownumber,
columns
F...
MAMP Pro 3.05 on Mavericks updated to Yosemite - Apache does not start
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Apache started, but MySQL will not.
– Justin Putney
Feb 12 '15 at 0:38
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Howto: Clean a mysql InnoDB storage engine?
Is it possible to clean a mysql innodb storage engine so it is not storing data from deleted tables?
2 Answers
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Gem::LoadError for mysql2 gem, but it's already in Gemfile
...upgrading to rails 4.2.4 (also with rails 4.1.5) try using this version of mysql2:
gem 'mysql2', '~> 0.3.18'
Apparently mysql2 isn't still compatible with newer version of rails because rails 4.2.4 is pretty new as the time of answering this question by me 8 September 2015 so use the above lin...
Python list directory, subdirectory, and files
...ncatenate the directory and file name:
for path, subdirs, files in os.walk(root):
for name in files:
print os.path.join(path, name)
Note the usage of path and not root in the concatenation, since using root would be incorrect.
In Python 3.4, the pathlib module was added for easier path...
Using MySQL with Entity Framework [closed]
Can't find anything relevant about Entity Framework/MySQL on Google so I'm hoping someone knows about it.
10 Answers
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What is the MySQL JDBC driver connection string?
I am new to JDBC and I am trying to make a connection to a MySQL database.
I am using Connector/J driver, but I cant find the JDBC connection string for my Class.forName() method.
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How do I calculate square root in Python?
...valuate to 0.
And for the record, the preferred way to calculate a square root is this:
import math
math.sqrt(x)
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How to remove not null constraint in sql server using query
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Why does this work and not the above accepted answer for mysql ?
– HopeKing
Feb 13 '18 at 8:47
1
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How to recover MySQL database from .myd, .myi, .frm files
How to restore one of my MySQL databases from .myd , .myi , .frm files?
11 Answers
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