Question: How do I find the last updated column in mysql?

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

In MySQL’s latest version you can use the information_schema database if another table is already updated like this:

  1. SELECT UPDATE_TIME.
  2. FROM information_schema.tables.
  3. WHERE TABLE_SCHEMA = ‘dbname’
  4. AND TABLE_NAME = ‘tabname’

How can I see column details in MySQL?

You can get the MySQL table columns data type with the help of “information_schema. columns”. SELECT DATA_TYPE from INFORMATION_SCHEMA. COLUMNS where table_schema = ‘yourDatabaseName’ and table_name = ‘yourTableName’.

How can I tell when a table was last updated?

If a user wants to find out when was the last table updated he can query dynamic management view (DMV) – sys. dm_db_index_usage_stats and easily figure out when was the table updated last.

What is current timestamp in MySQL?

MySQL CURRENT_TIMESTAMP() function

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.

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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 can I tell when a SQL record was last updated?

Here is the syntax that we can use to get the latest date records in SQL Server. Select column_name, .. From table_name Order By date_column Desc; Now, let’s use the given syntax to select the last 10 records from our sample table.

How do I get a list of column names in MySQL?

Get column names from a table using INFORMATION SCHEMA

  1. SELECT COLUMN_NAME.
  2. FROM INFORMATION_SCHEMA. COLUMNS.
  3. WHERE.
  4. AND TABLE_NAME = ‘sale_details’ ;

Which command will return a list of triggers?

SHOW TRIGGERS lists the triggers currently defined for tables in a database (the default database unless a FROM clause is given). This statement returns results only for databases and tables for which you have the TRIGGER privilege.

What is drawback of JSON columns?

The drawback? If your JSON has multiple fields with the same key, only one of them, the last one, will be retained. The other drawback is that MySQL doesn’t support indexing JSON columns, which means that searching through your JSON documents could result in a full table scan.

Where can I find recently modified tables in SQL Server?

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

  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],
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How do I get the last modified record in SQL Server?

“sql query to get last modified record in a table” Code Answer’s

  1. DECLARE @TableRowCounts TABLE ([TableName] VARCHAR(128), [RowCount] INT) ;
  2. INSERT INTO @TableRowCounts ([TableName], [RowCount])
  3. EXEC sp_MSforeachtable ‘SELECT ”?” [ …
  4. SELECT [TableName], [RowCount]
  5. FROM @TableRowCounts.
  6. ORDER BY [TableName]
  7. GO.

How do you update a table time in SQL?

To update with the current date and time: UPDATE table_name SET date_field = CURRENT_TIMESTAMP; To update with a specific date value: UPDATE table_name SET date_field = ‘YYYY-MM-DD HH:MM:SS.

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