How can I tell when a MySQL table was last updated?

How can you tell when a database was last modified?

SELECT name [TableName], Create_date [CreateDate], modify_date [LastUpdate] FROM sys. all_objects WHERE type = ‘U’ ORDER BY modify_date DESC; From above SQL Command which would give you all Table_Name which are last effected by some activities (i.e. insert, update or delete).

How do I find the last updated column in MySQL?

The only way for doing this is Using something like a Log file, in this case you will create a table that will contains the updated columns each time there is an update. In this way you will be able to get the last record that will contains the table_name and the column_name.

Does MySQL keep track of changes?

MySQL binary logs provide a very efficient way to track data changes for MySQL CDC. They contain events that describe the modifications to data. In short, binary logs contain all the information that is required to trace the global status of the server right from the time it was started.

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When I update a table in SQL does my view get updated?

Yes,Because view is a reflection of content of its underlying tables, so any updation in tables will naturally update the view. Yes , View gets updated. Please note that View is a logical statement and the data in view is not stored anywhere, the data is returned from database every time we select data from view.

How can I tell when a SQL Server table was last modified?

How to determine the last modified date of tables in SQL Server Instance

  1. t.[name] AS [UserTableName], [create_date] AS [CreatedDate], [modify_date] AS [ModifiedDate] …
  2. t.[name] AS [UserTableName], [create_date] AS [CreatedDate], [modify_date] AS [ModifiedDate] …
  3. t.[name] AS [UserTableName], [create_date] AS [CreatedDate],

How do you check who modified the database in SQL Server?

3 Answers. Query the sys. objects table to find the objects that changed and filter by modify_date and type ; U = User table, P = Stored procedure. This approach will tell you what objects have changed, but not the specific changes.

What is current timestamp in MySQL?

In MySQL, the CURRENT_TIMESTAMP returns the current date and time in ‘YYYY-MM-DD HH:MM:SS’ format or YYYYMMDDHHMMSS. uuuuuu format depending on whether numeric or string is used in the function. NOW() and CURRENT_TIMESTAMP() are the synonym of CURRENT_TIMESTAMP.

Is timestamp or datetime better?

The DATETIME type is used for values that contain both date and time parts. MySQL retrieves and displays DATETIME values in ‘ YYYY-MM-DD hh:mm:ss ‘ format. … The TIMESTAMP data type is used for values that contain both date and time parts. TIMESTAMP has a range of ‘1970-01-01 00:00:01’ UTC to ‘2038-01-19 03:14:07’ UTC.

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What is timestamp in MySQL?

The MySQL TIMESTAMP is a temporal data type that holds the combination of date and time. The format of a TIMESTAMP is YYYY-MM-DD HH:MM:SS which is fixed at 19 characters. The TIMESTAMP value has a range from ‘1970-01-01 00:00:01’ UTC to ‘2038-01-19 03:14:07’ UTC .

How do I trigger a track change in MySQL?

To ensure that changes to the data table are logged to the data_log table, we need to create a set of triggers. The triggers need to adhere to the following rules: For inserts, log an insert operation showing the values in the new row. For updates, log an update operation showing the new values in the updated row.

Where is the MySQL log file?

log or mysqld. log. The data directory will typically be /var/lib/mysql/ or something similar, and it will serve as the default destination for any logs that are enabled without an alternate path. The log settings are managed via a user-editable configuration file such as /etc/mysql/mysql.

How do I find query history in MySQL?

How to show the queries log in MySQL?

  1. Enable Query logging on the database. SET global general_log = 1; SET global log_output = ‘table’;
  2. Now you can view the log by running this query: SELECT * FROM mysql. general_log;
  3. If you want to disable query logging on the database, run this query: SET global general_log = 0;

Can an SQL VIEW be updated?

Answer: A VIEW in SQL is created by joining one or more tables. When you update record(s) in a view, it updates the records in the underlying tables that make up the SQL View. So, yes, you can update the data in a SQL VIEW providing you have the proper privileges to the underlying SQL tables.

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Can we insert update delete in view?

Restrictions on Updating Data Through Views You can insert, update, and delete rows in a view, subject to the following limitations: If the view contains joins between multiple tables, you can only insert and update one table in the view, and you can’t delete rows.

Are views faster than queries?

Views make queries faster to write, but they don’t improve the underlying query performance. … Once we create an indexed view, every time we modify data in the underlying tables then not only must SQL Server maintain the index entries on those tables, but also the index entries on the view.

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