直接支持 (CSV) 文件格式的 Parquet 和分隔文本。 通过指定 CSV 文件格式(其中的查询以单独的行形式返回每个文档),间接支持 JSON 文件格式。 可以使用JSON_VALUE和OPENJSON进一步分析行。 有关 PolyBase 的常规信息,请参阅SQL Server 中 PolyBase 的数据虚拟化。
OPENJSON函数分析 JSONL 文件的每一行,该文件每行包含一个文本格式的 JSON 文档。 Azure Cosmos DB 容器视图 如果在容器上启用了 Azure Cosmos DB 分析存储,则可以在 Azure Cosmos DB 容器之上创建视图。 Azure Cosmos DB 帐户名称、数据库名称和容器名称应添加到视图中,并且只读访问密钥应放置在视图引用的数据库范...
OPENJSON returning NULL OPENQUERY and Active Directory problem openquery concatenation OPENQUERY Error when calling usp - object has no columns or the current user does not have permissions OpenQuery in a FUNCTION OpenQuery Limitation, Max 8000 character OPENQUERY parameter length limitation of 8000 charact...
OPENJSON(BULK)读取文件的内容并在BulkColumn中返回该内容。 也可以将文件内容载入局部变量或表中,如下面的示例所示: SQL -- Load file contents into a variableDECLARE@jsonNVARCHAR(MAX);SELECT@json= BulkColumnFROMOPENROWSET(BULK'C:\JSON\Books\book.json', SINGLE_CLOB)asj-- Load file contents into a ...
OPENROWSET, OPENXML, and OPENJSON functions ODBC scalar functions FOR SYSTEM_TIME TABLESAMPLE MATCH expression CONTAINS expression FREETEXT expression Starting in Tableau Cloud October 2023 and Tableau Server 2023.3, Tableau Catalog also offers support for custom SQL queries that use PostgreSQL, with the ...
If you must load JSON data from an external service into SQL Server, you can use OPENJSON to import the data into SQL Server instead of parsing the data in the application layer. In supported platforms, use the native json data type instead of nvarchar(max) for improved performance and more...
(), "OPENJSON": lambda self: self._parse_open_json(), "POSITION": lambda self: self._parse_position(), "PREDICT": lambda self: self._parse_predict(), "SAFE_CAST": lambda self: self._parse_cast(False, safe=True), "STRING_AGG": lambda self: self._parse_string_agg(), "SUBSTRING...
FROM AdventureWorks2012.HumanResources.Department ORDER BY GroupName, Name')ASa; OPENQUERY 在指定的链接服务器上执行指定的DML操作。客户以是INSERT\DELETE\UPDATE\SELECT。前提是服务器是 OLE DB 数据源。 参考: OPENJSON OPENXML OPENSOURCE OPENROWSET
{schema})" ) def openjsoncolumndef_sql(self, expression: exp.OpenJSONColumnDef) -> str: this = self.sql(expression, "this") kind = self.sql(expression, "kind") path = self.sql(expression, "path") path = f" {path}" if path else "" as_json = " AS JSON" if expression.args...
OpenJsonTableReference OpenMasterKeyStatement OpenQueryTableReference OpenRowsetColumnDefinition OpenRowsetCosmos OpenRowsetCosmosOption OpenRowsetCosmosOptionKind OpenRowsetTableReference OpenSymmetricKeyStatement OpenXmlTableReference OperatorAuditOption OptimizeForOptimizerHint OptimizerHint OptimizerHintKind Opt...