Evaluate Expression with expression builder - ssis

Question

I am new to ssis and I would like to evaluate this using expression builder to get the current date in bigin. Any idea?
DATEPART(second, getdate()) +
DATEPART(minute, getdate()) * 100 +
DATEPART(hour, getdate()) * 10000 +
DATEPART(day, getdate()) * 1000000 +
DATEPART(month, getdate()) * 100000000 +
DATEPART(year, getdate()) * 10000000000
The error is
Expression cannot be evaluated.
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ADDITIONAL INFORMATION:
The expression contains unrecognized token "second". If "second" is a variable, it should be expressed as "#second". The specified token is not valid. If the token is intended to be a variable name, it should be prefixed with the # symbol.
Attempt to parse the expression "DATEPART(second, getdate()) +
DATEPART(minute, getdate()) * 100 +
DATEPART(hour, getdate()) * 10000 +
DATEPART(day, getdate()) * 1000000 +
DATEPART(month, getdate()) * 100000000 +
DATEPART(year, getdate()) * 10000000000" failed and returned error code 0xC00470A4. The expression cannot be parsed. It might contain invalid elements or it might not be well-formed. There may also be an out-of-memory error.
(Microsoft.DataTransformationServices.Controls)
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Answer 1

The syntax for DATEPART in an SSIS expression is different then the syntax in TSQL. Because that helps makes our lives harder than necessary.
The first argument, datepart, has to be enclosed in double quotes. This should get you closer to what you're after.
DATEPART("second", getdate()) +
DATEPART("minute", getdate()) * 100 +
DATEPART("hour", getdate()) * 10000 +
DATEPART("day", getdate()) * 1000000 +
DATEPART("month", getdate()) * 100000000 +
DATEPART("year", getdate()) * 10000000000
The next error you'll get is:
The literal "10000000000" is too large to fit into type DT_I4. The magnitude of the literal overflows the type.
You can fix that one by adding an L to the end of the last literal:
DATEPART("second", getdate()) +
DATEPART("minute", getdate()) * 100 +
DATEPART("hour", getdate()) * 10000 +
DATEPART("day", getdate()) * 1000000 +
DATEPART("month", getdate()) * 100000000 +
DATEPART("year", getdate()) * 10000000000L
And that evaluated correctly to 20200611143622.