# 数据库迁移配置source:version:SQL Server 2019databases:-name:sample_dbtables:-name:json_datacolumns:-name:json_columntype:NVARCHAR(MAX)target:version:SQL Server 2022databases:-name:sample_db_migratedtables:-name:json_data_migratedcolumns:-name:json_columntype:JSON 1. 2. 3. 4. 5. 6. 7. 8...
时间SUBSTRING(CONVERT(nvarchar(4000), COLUMN, 126), 1+CHARINDEX(N'T', CONVERT(nvarchar(4000), COLUMN, 126)), 24) 所有其他无其他转换 备注 SQL Server 返回的某些值可能与使用xsd:type指定的 XML 数据类型不兼容,因为转换是不可能(例如,将“XYZ”转换为十进制数...
parent_id int NOT NULL, /* [0 -- Root] if the element has a parent then it is in this column. The document is the ultimate parent, so you can get the structure from recursing from the document */ name nvarchar(2000), /* the name of the object */ stringvalue nvarchar(4000) NOT...
'''),1,1,''')) + '' }'' as json from ' + @TableName + ' with(nolock) where ('+@ColumnIn+' in (Select MyValues from dbo.funSplitArray('''+@ColumnValues+''','',''))) '+@Condition--+' ORDER BY '+@SortColumn+' '+@SortType exec sp_sqlexec @query --SELECT @query...
{"stepType":"sqlserver","parameter":{"connection":[{"querySql":["select name from dbo.test_table"],"datasource":"sql_server_source"}],"datasource":"sql_server_source","column":["name"],"where":"","splitPk":"id"},"name":"Reader","category":"reader"} ...
type Is the data type for the output column. Note If you also use the AS JSON option, the column type must be NVARCHAR(MAX). column_path Is the JSON path that specifies the property to return in the specified column. For more info, see the description of the path parameter previously ...
不建议在sql中使用json,但是json在sql中确实有很多灵活的使用,尤其是复杂查询,记录一下常见的使用情况 16版本下支持json SQL Server 2016开始支持JSON数据类型,现在很多还是没有升级到这个版本,为了支持json,需要自己定义json处理函数 附上处理json的函数 CREATEFUNCTION[dbo].[ParseJSON](@jsonnvarchar(max) )RETURNS@...
json 类型的使用语法类似于表中的所有其他 SQL Server 数据类型。syntaxsql 复制 column_name JSON [NOT NULL | NULL] [CHECK(constraint_expression)] [DEFAULT(default_expression)] json 类型可用于 CREATE TABLE 语句中包含的列定义,例如:SQL 复制
In this case, SQL Server doesn't have to read additional data from theSalesOrderHeadertable because everything it needs is included in the nonclustered JSON index. This type of index is a good way to combine JSON and column data in queries and to create optimal indexes for your workload....
JSON_MODIFY (Transact-SQL) changes a value in a JSON string. Example In the following example, the query uses both relational and JSON data (stored in a column named jsonCol) from a table called People: SQL Copy SELECT Name, Surname, JSON_VALUE(jsonCol, '$.info.address.PostCode') AS...