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What are the commands in MySQL?

by Rhyley Bryan

What are the commands in MySQL?

MySQL Commands

Description Command
Function for date-time input in MySQL NOW()
Select all records from a table SELECT * FROM [table-name];
Explain all records in a table EXPLAIN SELECT* FROM [table-name];
Select records from the table SELECT [column-name], [another-column-name] FROM [table-name];

How do you shrink MariaDB?

How to Shrink MySQL ibdata1 Size using innodb_file_per_table

  1. Big MySQL (and MariaDB) System Tablespace.
  2. Set the innodb_file_per_table parameter.
  3. New Tables (and index) as individual files.
  4. Extract existing tables from ibdata1.
  5. Shrink ibdata1 File Size.
  6. Backup the Database.
  7. Drop all your database.
  8. Delete ibdata and ib_logfile.

How do I find the size of a MySQL database?

From query editor, run this query: SELECT table_schema AS ‘DB Name’, ROUND(SUM(data_length + index_length) / 1024 / 1024, 1) AS ‘DB Size in MB’ FROM information_schema. tables GROUP BY table_schema; It will return the size of each database from the current connection.

How to create a compact SQL Server database?

4 .Click Connect to connect to the new SQL Server Compact database. The database is now displayed in Object Explorer. At present you can only create a SQL 3.5 Compact database using SQL Management Studio. In order to create a SQL 4 Compact Database you need to use the SQL CE toolbox. Full instructions are available on the site.

How to compact MySQL database size?

Normally MySQL not able purge all temporary tables which is created by user stored in ibtemp and it grows day by day. If you are affordable downtime then take restart of MySQL service. It free disk space used by ibtemp temporary Tablespace. Read about innodb row format you will get idea..

How to write a command in MySQL?

MySQL Commands 1 Write a query to create a table country with column names country name, country id, and region id? 2 How to get a list of all databases present? We can get a list of all running databases in MySQL using the below query Query: Show databases; Output: 3 How to get all tables in a database using MySQL?

How to create SQL Compact model in ADO.NET?

Right click on the solution explorer and choose add => new item => ADO.net entity data model, let’s call ours “CompactRepository”. Next, choose generate from database. Then select your database from the drop down list. Then, choose all the tables / stored procedures you want to include in your model. Finally click finish.