Microsoft SQL Server, for example, uses Transact-SQL. This implementation includes proprietary extensions for writing stored procedures and triggers (application code that can be stored in the database), and managing user accounts. PostgreSQL and MySQL also have their own versions of these features....
SQL Server 2005 introduced the new features of ‘after update’, ‘after insert’ and ‘after delete’ triggers that almost solved the problem of tracking changes in data. A better solution was introduced in SQL Server 2008 and is called Change Data Capture (CDC). CDC has allowed SQL Server...
At present, the system message source inputs the rule engine according to the system fixed basic message format; users can define SQL editing based on the basic message format for the extraction and restructuring of json data; users can define SQL statement for message handling, as shown in th...
hort Message Service (SMS) Triggers a fixed template SMS containing user-defined parameters Storage Service (coming soon) Data storage service based on MySQL databaseMore HelpLearn how to configure console rules Learn how to configure SQL statements in the rules Learn about basic message format...
To avoid the situation that modifying data on a small table frequently triggers the automatic update, when a table has less than 1000 rows, modifications do not trigger the automatic update in TiDB. You can use the SHOW STATS_META statement to view the number of rows in a table. ...
Introduction to Cursors, Embedded SQL, Stored Procedures, and Triggers-chapter 13SQL is powerful, but it also requires more capabilities to make it truly useful. Such capabilities include executing SQL and accessing results in other programming languages, scripting procedures, and reacting to changes ...
The next diagram shows the functionality used from the point of view of the component that will export the metric measurements, and installs its notification callback to track changes in available metrics.
in this column. When you design a distributed table, it's important to select the distribution column carefully; you should use a column with a large number of distinct values that would typically be used to group related rows. For example, in a table for an e-commerc...
Interpreted Transact-SQL refers to accessing memory-optimized tables without a natively compiled stored procedure. Some examples of interpreted Transact-SQL access include accessing a memory-optimized table from a DML trigger, ad hoc Transact-SQL batch, view, and table-valued function....
Used to enter or edit longer texts like working experience and skills in your CV. / Number Used to enter numeric information (integers, negative numbers, and decimals). Used to enter numeric data when filling in sales volume or the number of orders. Number Widget Password During entry, the...