EN许多有经验的数据库开发或者DBA都曾经头痛于并行查询计划，尤其在较老版本的数据库中（如sqlserver2000...
db.Deleteable<Order>().In(it=>,1).ExecuteCommand(); //根据主键数组 db.Deleteable<Student>().In(new int[] { 1, 2 }).ExecuteCommand(); //无主键用法 db.Deleteable<Student>().In(it=>,new int[] { 1, 2 }).ExecuteCommand(); //Oracle用户注意:这种方式只能删除1000,用达式方式.Whe...
In SQL Server 2017 (14.x) and in Azure SQL Database, you can provide a variable as the value of path. The following example returns a nested object by specifying the path: sql Copy DECLARE @json NVARCHAR(4000) = N'{ "path": { "to":{ "sub-object":["en-GB", "en-UK","de...
SQL 複製 DECLARE @json1 NVARCHAR(MAX),@json2 NVARCHAR(MAX) SET @json1=N'{"name": "John", "surname":"Doe"}' SET @json2=N'{"name": "John", "age":45}' SELECT * FROM OPENJSON(@json1) UNION ALL SELECT * FROM OPENJSON(@json2) WHERE [key] NOT IN (SELECT [key] FROM OPENJS...
在SQL Server 2016中,存储过程中的串联OPENJSON是指使用OPENJSON函数将JSON数据解析为关系型数据,并将其与其他表或视图中的数据进行连接操作。 OPENJSON函数是SQL Server 2016引入的一种用于处理JSON数据的内置函数。它可以将JSON文本解析为关系型数据,使得可以在存储过程中方便地处理和操作JSON数据。
SQL Server 2016 (13.x) and later Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics UseOPENJSONwith the default schema to return a table with one row for each property of the object or for each element in the array. ...
You can check compatibility level in the sys.databases view or in database properties.You can change the compatibility level of a database by using the following command: ALTER DATABASE <DatabaseName> SET COMPATIBILITY_LEVEL = 130Learn more about JSON in SQL Server and Azu...
If you're familiar with programming, this is as simple as a function call or accessing a length property on the Array. We can achieve a similar result in SQL Server by sub-querying theOPENJSONfunction. DECLARE@world_cup_winnersNVARCHAR(MAX)SET@world_cup_winners=N'[{"country": "Brazil","...
When you execute the OPENJSON function in a contained database in SQL Server 2016, an access violation may occur. Additionally, SQL Server may crash. Resolution This update is included in the following cumulative updates: Cumulat...
Parse and Transform JSON Data with OPENJSON TheOPENJSONfunction is available only undercompatibility level 130. If your database compatibility level is lower than 130, SQL Server can't find and run theOPENJSONfunction. Other built-in JSON functions are available at all compatibility levels. ...