Category Archives: MySql
This post covers how to make a free website backup. Once finished you will be able to download a complete website backup zip file. This will also include your database. This task is very easy but I am going to explain the process in detail. Update: Backed by popular demand I was asked to do Read More
For Custom Column Output Names Terminal MySQL, when selecting data from a table using the SELECT statement, you can customize the output column names. This can be useful when the column names in the table are not descriptive enough or when you want to format the output in a specific way. Custom Column Output Names Read More
To update a record you can use this command. UPDATE [table] SET [column] = ‘[updated-value]’ WHERE [column] = [value]; Complete Cheat Sheet https://gist.github.com/hofmannsven/9164408
To select with a customer order and limit the results use this command. SELECT * FROM [table] WHERE [column] ORDER BY [column] ASC LIMIT [value]; You can order by ascending. ASC Or you can order by descending. DESC Complete Cheat Sheet https://gist.github.com/hofmannsven/9164408
To select a range use this code. Take out the brackets and replace the values. SELECT * FROM [table] WHERE [column] BETWEEN [value1] and [value2]; Complete Cheat Sheet https://gist.github.com/hofmannsven/9164408
To find records that start and end with a certain value use this command. SELECT * FROM [table] WHERE [column] LIKE ‘[val_ue]’; Complete Cheat Sheet https://gist.github.com/hofmannsven/9164408
To find something that starts with a certain string use this code. SELECT * FROM [table] WHERE [column] LIKE ‘[value]%’; Complete Cheat Sheet https://gist.github.com/hofmannsven/9164408
To export a database use this command in terminal. mysqldump -u [username] -p [database] > db_backup.sql If that does not work for you then you may have created a user in cPanel or some other website management application. You may have to use the –no-tablespaces tag. The syntax looks like this mysqldump –no-tablespaces -h localhost Read More
To import a database dump use this command. mysql -u [username] -p -h localhost [database] < db_backup.sql Complete Cheat Sheet https://gist.github.com/hofmannsven/9164408
To delete records in mysql use this terminal command. DELETE FROM [table] WHERE [column] = [value]; Delete all records without dropping the table. This will also reset the increment number value. DELETE FROM [table]; Delete all records in a table. truncate table [table]; Remove table columns. ALTER TABLE [table] DROP COLUMN [column]; Deleting tables. DROP TABLE Read More
To find records containing something use this command. SELECT * FROM [table] WHERE [column] LIKE ‘%[value]%’; Complete Cheat Sheet https://gist.github.com/hofmannsven/9164408
To select specific records in terminal use this code. SELECT * FROM [table] WHERE [column] = [value]; You can also use these selectors. Less Than < Greater Than > Not Equal To != And and Or or Complete Cheat Sheet https://gist.github.com/hofmannsven/9164408
To count and select group records in terminal use this command. SELECT *, (SELECT COUNT([column]) FROM [table]) AS count FROM [table] GROUP BY [column]; Complete Cheat Sheet https://gist.github.com/hofmannsven/9164408
To count records enter this command. Take out square brackets and replace names accordingly. SELECT COUNT([column]) FROM [table]; Complete Cheat Sheet https://gist.github.com/hofmannsven/9164408
To select parts of records use this command. SELECT [column], [another-column] FROM [table]; Complete Cheat Sheet https://gist.github.com/hofmannsven/9164408
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