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SQL Query Where Field DOES NOT Contain $x
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How to add a progress bar to a shell script?
...u can do things, such as the following.
$ pmonitor -c gzip
/home/dds/data/mysql-2015-04-01.sql.gz 58.06%
An earlier version of Linux and FreeBSD shell scripts appears on my blog.
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SQL join: selecting the last records in a one-to-many relationship
... features of your RDBMS to analyze the optimization plan. E.g. EXPLAIN on MySQL.
Some people use subqueries instead of the solution I show above, but I find my solution makes it easier to resolve ties.
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List All Redis Databases
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There is no command to do it (like you would do it with MySQL for instance). The number of Redis databases is fixed, and set in the configuration file. By default, you have 16 databases. Each database is identified by a number (not a name).
You can use the following command to kn...
Strings as Primary Keys in SQL Database [closed]
...Good explanation. But holds this true for all SQL databases? I've heard of MySQL performance issues when using random UUID as primary key.
– hgoebl
Aug 27 '17 at 11:08
add a c...
MySQLDump one INSERT statement for each data row
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Use:
mysqldump --extended-insert=FALSE
Be aware that multiple inserts will be slower than one big insert.
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What special characters must be escaped in regular expressions?
...lavors (BRE/ERE)
Includes awk, ed, egrep, emacs, GNUlib, grep, PHP (ereg), MySQL, Oracle, R, sed.PCRE support may be enabled in later versions or by using extensions
ERE/awk/egrep/emacs
Outside a character class: . ^ $ * + ? ( ) [ { } \ |
Inside a character class: ^ - [ ]
BRE/ed/grep...
SQL set values of one column equal to values of another column in the same table
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How to prevent Node.js from exiting while waiting for a callback?
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I did look at felixge/node-mysql library and didn't see a reference to the command client.connect in the API. Is this the actual call you're trying to make (not trying to be nitpicky here)? Regardless, IMHO you need to think more about how Javascript...
Excel to CSV with UTF8 encoding [closed]
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Needed to export an XLS as CSV to import in MySQL. Using Excel 2003 I exported in format "Unicode Text (.txt)", then used Notepad++ to replace the TAB with ;, then imported the txt-file into phpmyadmin with default "Character set of the file: utf-8", Format "CSV using ...