需要CREATE DATABASE、CREATE ANY DATABASE或ALTER ANY DATABASE權限。 若要在 SQL Server 實例上維護磁碟使用的控制,建立資料庫的許可權通常僅限於少數登入。 下列範例提供建立資料庫給資料庫用戶Fay的許可權。 SQL USEmaster; GOGRANTCREATEDATABASETO[Fay]; GO 資料和記錄檔
an Access database has a size limit of 2 GB and can't support more than 255 concurrent users. So, when it's time for your Access database to go to the next level, you can migrate to SQL Server. SQL Server (whether on-premises or in the Azure cloud) supports larger ...
Database design Development Internals & architecture Installation Migrate & load data Manage, monitor, & tune Query data Reporting & Analytics Security Tools Tutorials SQL Server on Linux SQL on Azure Azure Arc Resources Reference Azure Data CLI azcli Database samples Errors & events Event classes ...
Database design Development Internals & architecture Installation Migrate & load data Manage, monitor, & tune Query data Reporting & Analytics Security Tools Tutorials SQL Server on Linux SQL on Azure Azure Arc Resources Reference Azure Data CLI azcli Database samples Errors & events Event classes ...
MS SQL Server Data Types String Data Types Data typeDescriptionMax char lengthStorage char(n)Fixed-length non-Unicode character data (n must be between 1 and 8000)8,000n bytes (uses one byte for each character) varchar(n)Variable-length non-Unicode character data (n must be between 1 and...
Best practices for upgrading database compatibility level Remarks Show 16 more Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Sets Transact-SQL and query processing behaviors to be compatible with the specified version of the SQL engine. For other ALTER DATABASE options, see...
In SQL Server 2014 (12.x) the supported data size is 256 GB for SCHEMA_AND_DATA tables. The size of a memory-optimized table corresponds to the size of data plus some overhead for row headers. When migrating a disk-based table to memory-optimized, the size of the memory-optimized ...
Backs up a SQL database. Select a product In the following row, select the product name you're interested in, and only that product's information is displayed. For more information about the syntax conventions, see Transact-SQL syntax conventions. * SQL Server * SQL Managed Instance ...
The following table specifies the maximum sizes and numbers of various objects that were tested in the SQL Server data-tier applications (DAC). 1The types of objects included in the limit are users, tables, views, stored procedures, user-defined functions, user-defined data type, database role...
8 KB and 64 KB are as many values as are need to be tested. The most common random I/O size for SQL Server is 8 KB. For random I/O, pay close attention to the number of I/Os per second and latency. For sequential I/O, test a range of sizes (4, 8, 16, 32, 64, 128,...