Azure 数据工厂活动副本从每个活动中获取多个表名称

Question

使用数据工厂 V2 我正在尝试实现从一个 Azure SQL 数据库到另一个数据库的数据复制流。 我必须将多个表合并为一个目标表。

为此，我创建了一个查找活动，用于创建要复制的三个表的名称。输出JSON文件将传递给 foreach 活动，该活动应将每个表的数据复制到目标表中，但管道执行不成功。

我在下面报告我的管道代码：

{
"name": "FLD_Item_base",
"properties": {
"activities": [
{
"name": "myLookup",
"type": "Lookup",
"dependsOn": [
{
"activity": "myStoredProcedure",
"dependencyConditions": [
"Succeeded"
]
}
],
"policy": {
"timeout": "7.00:00:00",
"retry": 0,
"retryIntervalInSeconds": 30,
"secureOutput": false,
"secureInput": false
},
"typeProperties": {
"source": {
"type": "SqlSource",
"sqlReaderQuery": "SELECT tsy_company_desc, tsy_tabella_desc, tsy_company_id, ncase when tsy_company_desc = 'all' nthen '['+ tsy_tabella_desc + ']' else '['+tsy_company_desc + '$' + tsy_tabella_desc + ']'  end as nome_tabella_completo nfrom dbo.TSY_FLUSSI_LOAD_DWH nwhere tsy_flusso_desc = 'item_base' nand tsy_tabella_desc='Item' n"
},
"dataset": {
"referenceName": "TLD_Item",
"type": "DatasetReference"
},
"firstRowOnly": false
}
},
{
"name": "myStoredProcedure",
"type": "SqlServerStoredProcedure",
"policy": {
"timeout": "7.00:00:00",
"retry": 0,
"retryIntervalInSeconds": 30,
"secureOutput": false,
"secureInput": false
},
"typeProperties": {
"storedProcedureName": "[dbo].[myStoredProcedure]"
},
"linkedServiceName": {
"referenceName": "Sink",
"type": "LinkedServiceReference"
}
},
{
"name": "IterateSQLTables",
"type": "ForEach",
"dependsOn": [
{
"activity": "myLookup",
"dependencyConditions": [
"Succeeded"
]
}
],
"typeProperties": {
"items": {
"value": "@activity('myLookup').output",
"type": "Expression"
},
"activities": [
{
"name": "FullCopyActivity",
"type": "Copy",
"policy": {
"timeout": "7.00:00:00",
"retry": 0,
"retryIntervalInSeconds": 30,
"secureOutput": false,
"secureInput": false
},
"typeProperties": {
"source": {
"type": "SqlSource",
"sqlReaderQuery": {
"value": "SELECT * FROM @{item().value.name_tab}",
"type": "Expression"
}
},
"sink": {
"type": "SqlSink",
"writeBatchSize": 10000
},
"enableStaging": false,
"dataIntegrationUnits": 0
},
"inputs": [
{
"referenceName": "Source",
"type": "DatasetReference"
}
],
"outputs": [
{
"referenceName": "TLD_Item",
"type": "DatasetReference"
}
]
}
]
}
}

管道执行返回以下错误：

{
"errorCode": "400",
"message": "Activity failed because an inner activity failed",
"failureType": "UserError",
"target": "IterateSQLTables"
}

有谁知道如何解决问题？谢谢

Answer 1

请尝试@activity('myLookup').output.value而不是在活动IterateSQLTablesitems@activity('myLookup').output。

您可以在此处找到查找活动的文档