different types of server hardware

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lock mechanism for SQL Server (i)--Overview (types and scopes of locks)

Lock mechanism series for SQL Server:lock mechanism for SQL Server (i)--Overview (types and scopes of locks)lock mechanism for SQL Server (ii)--Overview (lock compatibility and resources that can be locked)lock mechanism for SQL Server (iii)--Overview (Locks and transaction isolation levels)lock mechanism for SQL

Go lock mechanism for SQL Server (i)--Overview (types and scopes of locks)

Label:Lock: Popular speaking is to add lock. Locking is a mechanism that the Microsoft SQL Server database engine uses to synchronize access to the same block of data by multiple users at the same time. Definition: When there are transactional operations, the database engine requires different types of locks, such as related data rows, data pages, or entire data

SQL Server data types int, bigint, smallint, and tinyint ranges

. Attention SQL Server calculates data types and expression knots when an int, smallint, tinyint, or bigint constant value is implicitly or explicitly converted to a float, real, decimal, or numeric data type using arithmetic operators such as + 、-、 *,/or% The precision of the fruit applies differently, depending on whether the query is automatically parameterized. As a result, similar expressions in a q

SQL Server Page Types detailed

SQL Server contains several different types of pages to meet the needs of your data store. Regardless of the type of page, their storage structure is the same. Each data file contains a significant number of 8KB pages, each page has 8192bytes available, each page has 96byte for the header storage, and the rest of the space is used to store the actual data, at th

SQL Server table variables, table types, temporary tables

Label:Temporary tables in SQL Server are divided into session temporary tables and permanent temporary tables. The session temp table is automatically deleted after the session ends, and the permanent temporary table is basically no different from the basic table, and it needs to be displayed by calling drop to delete it.Create a temporary tableCreate a session temp tableCREATE TABLE #table_name (column_nam

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