You create database views for convenience and for performance. When view performance is not enough the next step is creating materialized views. Before turning to materialized views, you should first explore all the performance tweaks you can do to normal MySQL views. For example, you could impro...
In Ubuntu systems running MySQL5.7(and later versions), therootMySQL user is set to authenticate using theauth_socketplugin by default rather than with a password. This plugin requires that the name of the operating system user that invokes the MySQL client matches the name of the MySQL...
I have facing an error to create the following view? It's ok in oracle but gave me error in mysql "ERROR 1349 (HY000): View's SELECT contains a subquery in the FROM clause". Please help me in urgent. create or replace view vu1 ...
Here, you update the population_stats view object to return the country field in addition to previously selected fields.mysql> CREATE OR REPLACE VIEW population_stats AS SELECT name, country, population FROM states LEFT JOIN state_population ON states.id = state_population.state_id;...
Example of existing Views in SQL Server Syntax: Create View view_name AsSELECT column_name(s) FROM table_name WHERE condition There are mainly 2 types of view Simple view- It is created by using simple select statements. Complex View- It is created by using select statement containing order...
To start, let’s highlight the fact that in MySQL 8.0 it’snotany more possible to create a user directly from theGRANTcommand: (ERROR 1410 (42000): You are not allowed to create a user with GRANT). This means that to grant some privileges to a user, the user must becreatedfirst....
MySqlClient.MySqlConnection cannot be cast to [B]MySQL.Data.MySqlClient.MySqlConnection. [C#] How to make the Console Process delay [C#] Oracle.DataAccess issue - Unhandled exception of type System.TypeInitializationException occured in mscorlib.dll [C#] Regex - Best Validation of Domain? [C#]...
Create a MySQL Database Create Tables in MySQL Database Now you need to select the database to work on: use tecmint; Here we will create a table called “minttec” with three fields: CREATE TABLE minttec ( id INT(3), first_name VARCHAR(15), ...
MySQL is an open-source database management system. CentOS 7 prefers MariaDB, a fork of MySQL managed by the original MySQL developers and designed as a repl…
I made quite a complex View on my MySQL database, and I realized that some queries are slow. My first idea was to add indexes but it's not possible to do on a view so I'm lost on how to improve the performance of my query. I'll share here my View query, and I'll do my...