Object storage integration SQL Server 2022 (16.x) introduces new object storage integration to the data platform, enabling you to integrate SQL Server with S3-compatible object storage, in addition to Azure Storage. The first is backup to URL and the second is Data Lake Virtualization.Data Lake...
Edge constraint cascade delete actionsYou can now define cascaded delete actions on an edge constraint in a graph database. SeeEdge constraints. New graph function -SHORTEST_PATHYou can now useSHORTEST_PATHinsideMATCHto find the shortest path between any two nodes in a graph or to perform arbitr...
A NOT NULL constraint specifies that no cell value for any row in this column can be blank. Generally, this rule is applied to columns that capture information that is absolutely vital to identify and extract data from a table. Continuing the Sales table example, Sale_Id and the Sales_Amoun...
Object storage integrationSQL Server 2022 (16.x) introduces new object storage integration to the data platform, enabling you to integrate SQL Server with S3-compatible object storage, in addition to Azure Storage. The first isbackup to URLand the second is Data Lake Virtualization. ...
Object storage integrationSQL Server 2022 (16.x) introduces new object storage integration to the data platform, enabling you to integrate SQL Server with S3-compatible object storage, in addition to Azure Storage. The first isbackup to URLand the second is Data Lake Virtualization. ...
To alter a table already created in MySQL, SQL Server, Oracle, or MS Access use the following SQL: ALTER TABLE Orders ADD FOREIGN KEY (P_Id) REFERENCES Persons(P_Id) CHECK Constraint The CHECK constraint ensures that all values in a column satisfy certain conditions. This is your checks ...
Can't we alter the table definition to add a unique constraint to achieve the same goal? Another thing confused me a lot is, my textbook says: "SQL Server forces any clustered indexes to be unique — even if you don’t define them that way. Fortunately, it does this in a way that ...
(15.x) introduces a new feature that is part of theIn-Memory Databasefeature family, Memory-optimized TempDB metadata, which effectively removes this bottleneck and unlocks a new level of scalability fortempdbheavy workloads. In SQL Server 2019 (15.x), the system tables involved in managing ...
The short version of this is fairly simple. Every table that you want to use in relations should have a primary key constraint; this can either be a single field or a combination of fields defined by an expression. For example: 代码语言:javascript ...
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