Both PostgreSQL and MySQL are popular and reliable relational database management systems. However, there are some differences between them when it comes to reliability, speed, scalability, and features.Reliability: Both PostgreSQL and MySQL are reliable, but PostgreSQL is known for being more reliable due to its emphasis on data integrity and its support for ACID (Atomicity, Consistency, Isolation, Durability) transactions. Speed: MySQL is generally considered to be faster than PostgreSQL,... What are pros and cons of PostgreSQL and MySQL? With respect to reliability, speed, scalability, and ..read more

Hey PHP and MySQL enthusiasts! I've found myself in a bit of a bind with slow query performance in my PHP application, and I'm turning to this awesome community for some wisdom. Let's dive into the intricacies of this MySQL maze together! I've noticed a considerable slowdown in my PHP application due to sluggish MySQL queries. The application's responsiveness is taking a hit, and I suspect it's rooted in inefficient database queries. Any tips on optimizing MySQL queries within a PHP... MySQL problem: Tackling Slow Query Performance in PHP Application ..read more

Hi everyone, I need to apply GDPR rules on my mysql database community edition but I can't find anything helpful and in few time I have to complete this task due to some checks for certification. I've thought about audit but it seems that only enterprise edition offers something useful for this. Is there anyone that could help me to find a solution to be compliant on GPDR in a mysql community edition? many thanks in advance for any answer Mario ..read more

Hey Folks Could you please help me to resolve my UAT issue. I need to do some calculation in my configs values (on 5 Mins Interval). For that i need to find delta between 2 times using LAG function. Sample table structure Code: create table T1 (Device varchar(25), ID integer, Interface varchar(100), Time DATETIME , Config integer); insert into T1 (Device, ID, Interface, Time, Config ) values('rddbernsg23oop42',32583,'rdd_test','2021-07-02 2:30:02',12552774); insert into T1 (Device, ID,... Need Help in Lag Function - MYSQL ..read more

I started receiving the following my mysql error log today (once every 30 seconds): [Note] Unknown database 'sunl' yes, those are not normal characters (backspace and Start of Heading) The only way I can find to stop the error is to create a database with that exact name. If I try to drop the database after creating it, the errors start back up. This was not a database that was ever created on this server. This server is acting as a replication slave, so I check the master and there... Unknown Database errors every 30 seconds if I drop unknown database ..read more

It is common we come across SQL with Like '%Alex%' in MySQL that no index will be used. Here is one of the rewrite solution that may help in your environment. Example select * from employee where emp_name like '%Alex%'; If emp_name is indexed, we can rewrite the SQL into the following syntax. Rewritten SQL select * from employee force index (emp_name_inx) where emp_name like '%Alex%' and emp_name> ..read more

I have an application concept where 50k people or more need to access a database with 500k records. Each person can only access between 10 and 30 records from this DB. This has to be done once every 4 weeks or so. User should not be able to access the contents of the database besides the 10 or 20 records they can have access to. What is the best way of going about doing this? I have thought that maybe the only way would be with Blockchain but this could be very expensive as far as I know,... Distributing a database to a huge number of users ..read more

Tosska SQL Tuning Expert for MySQL It is not just another SQL tuning tool There are not many SQL tuning tools for MySQL database, but most of them are focused on plan visualization or query plan analysis, it is not helpful if you don’t have in-depth SQL tuning knowledge and are not willing to spend extra effort to tune a SQL apart from their daily duties. If you are eager for getting one-button-solution tool that can tune a SQL statement automatically without the need... A new MySQL SQL tuning tool ..read more

I need some basic code which can be used to Access MySQL database in java. Thanks ..read more

hi friends, . any one know something about database transction ..read more