SSIS 表达式生成器：将 date/time 转换为 Epoch 时间戳
SSIS expression builder: convert date/time to Epoch timestamp
我正在尝试构建一个表达式以将 date/time 参数转换为将在 Url 的参数字符串中使用的纪元时间戳。
我想我会先尝试 GetDate()，然后替换实际参数 (@[$Package::endingDate])。
此语法：
DATEDIFF("s", "19700101", GETDATE() )
产生：
The function "DATEDIFF" does not support the data type "DT_WSTR" for
parameter number 2. The type of the parameter could not be implicitly
cast into a compatible type for the function. To perform this
operation, the operand needs to be explicitly cast with a cast
operator.
此语法：
DATEDIFF("s", (DT_WSTR)"19700101", GETDATE() )
产生：
Attempt to parse the expression "DATEDIFF("s", (DT_WSTR)"19700101",
GETDATE() )" failed. The expression might contain an invalid token, an
incomplete token, or an invalid element. It might not be well-formed,
or might be missing part of a required element such as a parenthesis.
此语法：
DATEDIFF("s", CAST("19700101" AS DT_WSTR), GETDATE() )
产生：
Attempt to parse the expression "DATEDIFF("s", CAST("19700101" as
DT_WSTR), GETDATE() )" failed. The expression might contain an invalid
token, an incomplete token, or an invalid element. It might not be
well-formed, or might be missing part of a required element such as a
parenthesis.
有没有办法将 date/time 转换为 Epoch 时间戳，包括时区调整？
试试这个：
DATEDIFF("SECOND",(DT_DBTIMESTAMP)"01/01/1970",GETDATE())
我正在尝试构建一个表达式以将 date/time 参数转换为将在 Url 的参数字符串中使用的纪元时间戳。
我想我会先尝试 GetDate()，然后替换实际参数 (@[$Package::endingDate])。
此语法：
DATEDIFF("s", "19700101", GETDATE() )
产生：
The function "DATEDIFF" does not support the data type "DT_WSTR" for parameter number 2. The type of the parameter could not be implicitly cast into a compatible type for the function. To perform this operation, the operand needs to be explicitly cast with a cast operator.
此语法：
DATEDIFF("s", (DT_WSTR)"19700101", GETDATE() )
产生：
Attempt to parse the expression "DATEDIFF("s", (DT_WSTR)"19700101", GETDATE() )" failed. The expression might contain an invalid token, an incomplete token, or an invalid element. It might not be well-formed, or might be missing part of a required element such as a parenthesis.
此语法：
DATEDIFF("s", CAST("19700101" AS DT_WSTR), GETDATE() )
产生：
Attempt to parse the expression "DATEDIFF("s", CAST("19700101" as DT_WSTR), GETDATE() )" failed. The expression might contain an invalid token, an incomplete token, or an invalid element. It might not be well-formed, or might be missing part of a required element such as a parenthesis.
有没有办法将 date/time 转换为 Epoch 时间戳，包括时区调整？
试试这个：
DATEDIFF("SECOND",(DT_DBTIMESTAMP)"01/01/1970",GETDATE())