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我有2个查询,其中一个查询包含要由另一个查询使用的参数。我做了类似的事情,但没有多个参数。下面是查询:从另一个查询的结果中设置变量?
SELECT [loadJob]
,[loadStep]
,[parameter]
,[value]
FROM [Admin].[admin].[LoadParameters] where loadJob like 'someJobName%' and (parameter = 'targetDatabaseName' or parameter = 'targetDatasetName' or parameter = 'targetDatasetSchema')
SELECT
TABLE_CATALOG as DB,
TABLE_SCHEMA,
TABLE_NAME,
COLUMN_NAME,
ORDINAL_POSITION,
COLUMN_DEFAULT,
IS_NULLABLE,
DATA_TYPE,
CHARACTER_MAXIMUM_LENGTH,
NUMERIC_PRECISION,
NUMERIC_PRECISION_RADIX,
NUMERIC_SCALE,
DATETIME_PRECISION,
CHARACTER_SET_NAME
FROM
INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_CATALOG = 'TheDataBase' // From the [parameter] with name 'targetDatabaseName' get form the [value] column
AND TABLE_SCHEMA = 'data' // From the [parameter] with name 'targetDatasetSchema' get form the [value] column
AND TABLE_NAME = 'TableName' // From the [parameter] with name 'targetDatasetName' get form the [value] column
所以如果我的第一个查询的结果是:
[parameter] [value]
targetDatabaseName SomeDataBaseName
targetDatasetSchema data
targetDatasetName TheTableName
的地方在第二个查询子句将使用这些参数,像这样:
FROM
INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_CATALOG = 'SomeDataBaseName'
AND TABLE_SCHEMA = 'data'
AND TABLE_NAME = 'TheTableName'
我想通过表名将所有内容分组,以便我可以将其导出为CSV。我尝试了一些东西,但是我很自豪地说没有什么可行的。