![]() The following packages will be installed: Lrwxrwxrwx 1 root root 37 xxx xx xxxx /usr/bin/psql ->. ![]() $ which psql // psql is an interactive PostgreSQL client Postgresql: /etc/postgresql /usr/lib/postgresql /usr/share/postgresql. $ sudo apt-get install postgresql postgresql-contrib // Verify the installation $ sudo apt-get update // Install PostgreSQL Installing PostgreSQL 10.6 Ubuntu // Refresh the apt-get repository The mother site for PostgreSQL is with manual. The project started in UC Berkeley in 1986, and is now developed by a group of volunteers called "PostgreSQL Global Development Group". It supports a large part of the SQL standards such as foreign keys, triggers, views and transactions and object-oriented features such as inheritance. PostgreSQL is an open-source Object-Relational Database Management System (ORDBMS). What about capitalization of keywords such as SELECT? Does that affect performance? I think that CAPS is ISO-compliant, but does it really matter? With tools available for editing code, the visual aspect of keywords is also helped by text color.I assume that you are familiar with SQL commands (such as CREATE TABLE, DROP TABLE, INSERT, SELECT, UPDATE and DELETE). Given the lack of performance difference and the rather negligible increase in code size just remember that coders who use spaces make more than coders who use tabs! This is to improve the look of the code, and just in case there was a benefit in having less spaces I would then be in line to receive such a boon. Please note my use of the word 'might', as I have to say that I would not put any money on there being a clear difference!Īnd perhaps I should point out that I am a confirmed deleter of gratuitous spaces. What might show a difference is if one had minimal spaces, while the other had vast quantities of gratuitous spaces. I am not surprised that there was no measurable difference between the two. Getting IO and time statistics for SQL Server queriesĬan comments hamper stored procedure performance? To other (more qualitative or religious) arguments, when debating tabs and spaces.Ĭustom Solution to Measure SQL Server Query Performance Improvements So, you can probably throw awayīoth the size and performance arguments for or against one or the other, and stick The argument to I/O, backup performance, and so on. To have a metric ton of stored procedures chock full of white space to start extending I was unable to detect any practical difference in terms of actual performance.Īnd since the size of the code stored in your databases is typically such a smallįraction of the size of the data stored in those same databases, you’d have System catalog is definitely affected by the use of spaces or tabs, in these tests, While I will concede that the size of the stored procedure as it exists in the ![]() The only difference being that in one all that white space is full of spaces, and SET = sys.sp_executesql a bit ugly, but essentially, it ends up with procedures like this, SET = sys.sp_executesql create spaces version + N'MAX(LEFT(RTRIM(' + QUOTENAME(c.) + '),10))'ĪND c.system_type_id NOT IN (34,98) - image, sql_variantĮXEC sys.sp_executesql create tabs version + N' $st char(10) $st = $st (SELECT $st '
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