Difference between 'using' and 'normal' DB Connection
59
What is the C# Using block and why should I use it?
55983
Connection pooling in PHP
53845
Difference between Database.executeBatch and Queueable Apex
139621
How can I set an SQL Server connection string?
149041
Why is PDO better for escaping MySQL queries/querystrings than mysql_real_escape_string?
147041
Is there a difference between (local), '.' and localhost?
115199
In what order are MySQL JOINs evaluated?
46486
What's the difference between a normal user and a system user?
63087
What's the difference between VARCHAR(255) and TINYTEXT string types in MySQL?
20079
Am I Using JDBC Connection Pooling?
148216
What is the best solution for database connection pooling in python?
7675
Explicit vs implicit SQL joins
114093
User root already has more than 'max_user_connections' active connections in Hibernate
25472
Database connection close
4094
What is the difference between "INNER JOIN" and "OUTER JOIN"?
151119
Would using varchar(5000) be bad compared to varchar(255)?
84825
In SQL, what's the difference between count(column) and count(*)?