Are != identical in terms of their performance in SQL server?
is ... the same as !=.But then a commenter pipes up and says:It's true that they are, functionally, the same. However, how the SQL optimizer uses…
1 Answer · 608 Views · Answered ✓
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is ... the same as !=.But then a commenter pipes up and says:It's true that they are, functionally, the same. However, how the SQL optimizer uses…
1 Answer · 608 Views · Answered ✓
I have a list of invalid email addresses parsed in the following format;There are roughly 1500 invalid addresses, and I need to remove them from my…
1 Answer · 843 Views · Answered ✓
Does declaring VARCHAR size make sense for performance? Is there any difference (in speed) between VARCHAR(50) and VARCHAR(255)? Or defining length…
1 Answer · 1.2K Views · Answered ✓
I have a powerful dedicated server.Intel I7-6700K -64GB DDR4 2400 MHz1x480GB SSDrunning mysql server along with nginx,phpinnodb-ft-min-token-size =…
1 Answer · 650 Views · Answered ✓
Is there any limit for the content that the IN filter can handle? For example:SELECT NameFROM PeopleWHERE Job IN (All the values goes here)Microsoft…
1 Answer · 1.8K Views · Answered ✓
I have a busy database with solely InnoDB tables which is about 5GB in size. The database runs on a Debian server using SSD disks and I've set max…
1 Answer · 801 Views · Answered ✓
I am writing a function that accepts a text flag based on which I need to run some code. So I am using an IF clause. However the code that has to…
1 Answer · 625 Views · Answered ✓
I tried resetting mySql password using official documentation but its not…
1 Answer · 904 Views · Answered ✓
I was reading this on PostgreSQL Tutorials:In case you want to return a value from a stored procedure, you can use output parameters. The final…
3 Answers · 8.4K Views · Answered ✓
I tried creating an ERD model for hotel reservation and billing. Are the cardinalities correct, I'm a bit confused about that. And are there any…
1 Answer · 3.6K Views · Answered ✓
With MSSQL it's easy, the @ marking the start of all variable names allows the parser to know that it is a variable not a column.This is useful for…
2 Answers · 4.0K Views · Answered ✓
I'm trying to do a SHOW TABLES command in my Oracle Database 19c as documented here.But when I run that command all I see in the output of SQL…
1 Answer · 1.2K Views · Answered ✓
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