Sql server alias column

sql server alias column

This data consistency check ensures that existing records do not overlap. If the HISTORY_TABLE argument is used to create a link to and use an existing history table, the link is created between the current table and the specified table. If current table is partitioned, the history table is created on default file group because partitioning configuration is not replicated automatically from the current table to the history table. For more information, see Temporal Tables. Enables system versioning of the table if the datatype, nullability constraint, and primary key constraint requirements are met. By default, the history table is PAGE compressed. If the HISTORY_TABLE argument is not used, the system generates a new history table matching the schema of the current table in the same filegroup as the current table, creating a link between the two tables and enables the system to record the history of each record in the current table in the history table. The name of this history table will be MSSQL_TemporalHistoryFor. Use this argument in conjunction with the PERIOD FOR SYSTEM_TIME and GENERATED ALWAYS AS ROW { START | END } arguments to enable system versioning on a table. Performing the data consistency check is the default. If the name of a history table is specified during history table creation, you must specify the schema and table name. When creating a link to an existing history table, you can choose to perform a data consistency check.

The following SQL statement creates two aliases. Server Side PHP Reference SQL. Alias for Columns Examples. SQL aliases are used to give a table.

CREATE TABLE (Transact-SQL) 08/10/2017; 67 minutes to read; Contributors. All; In this article THIS TOPIC APPLIES TO: SQL Server (starting with 2008) Azure SQL.

The expression cannot be a subquery or contain alias data types. The column is computed from an expression that uses other columns in the same table. Column_name
Is an expression that defines the value of a computed column. For example, a computed column can have the definition: cost AS price * qty. The expression can be a noncomputed column name, constant, function, variable, and any combination of these connected by one or more operators. A computed column is a virtual column that is not physically stored in the table, unless the column is marked PERSISTED.

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I need to rename a column in a table using SQL. I am using SQL Server 2008 and Navicat. ALTER TABLE table_name RENAME COLUMN old_name to new_name; This statement.

Optionally specifies a filter predicate to select rows to migrate from a table that contains both historical and current data. The predicate must call a deterministic inline table-valued function. For more info, see Enable Stretch Database for a table and Select rows to migrate by using a filter function.

SQL Studio for SQL Server. Click a column caption to sort items by values of this column in the ascending or the. Or right-click the host alias in the DB Explorer tree and select the Tasks , Database. *SQL Administrator for SQL Server. Note: To compare all features. *SQL Backup for SQL Server.

SQL Coding Assistance: code completion and formatting features

If the table is not partitioned, the ON PARTITIONS argument will generate an error. N ] )
Specifies the partitions to which the DATA_COMPRESSION setting applies. If the ON PARTITIONS clause is not provided, the DATA_COMPRESSION option will apply to all partitions of a partitioned table. ON PARTITIONS ( { | [.

If any exist, the dependent rows in the ProductVendor table are deleted, and also the row referenced in the Vendor table. BusinessEntityID, the Database Engine checks for one or more dependent rows in the ProductVendor table. If a DELETE statement is executed on a row in the Vendor table, and an ON DELETE CASCADE action is specified for ProductVendor.

Custom types in SQL Server (alias types and table types) are now introspected. Triggers now can be edited for MySQL, PostgreSQL, SQL Server, Oracle and Sybase. Table Editor provides completion. Table and column comments now can be added and modified from. Table and column comments.

THIS TOPIC APPLIES TO: yes SQL Server yes Azure SQL Database yes Azure SQL Data Ware.

The default is 0. Fillfactor must be an integer value from 1 to 100. FILLFACTOR =fillfactor
Specifies a percentage that indicates how full the Database Engine should make the leaf level of each index page during index creation or alteration. Fill factor values 0 and 100 are the same in all respects.

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