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BI - SSIS ( Basics V )

SSIS Expression Examples

This example casts a numeric value to an integer.
(DT_I4) 3.57
This example casts an integer to a character string using the 1252 code page.
(DT_STR,1,1252)5
This example casts a three-character string to double-byte characters.
(DT_WSTR,3)"Cat"
This example casts an integer to a decimal with a scale of two.
(DT_DECIMAl,2)500
This example casts an integer to a numeric with a precision of seven and scale of three.
(DT_NUMERIC,7,3)4000
This example casts values in the FirstName column, defined with an nvarchar data type and a length of 50, to a character string using the 1252 code page.
(DT_STR,50,1252)FirstName
This example casts values in the DateFirstPurchase column of type DT_DBDATE, to a Unicode character string with a length of 20.
(DT_WSTR,20)DateFirstPurchase
This example casts the string literal "True" to a Boolean.
(DT_BOOL)"True"
This example casts a string literal to DT_DBDATE.
(DT_DBDATE) "1999-10-11"
This example casts a string literal to the DT_DBTIME2 data type that uses 5 digits for fractional seconds. (The DT_DBTIME2 data type can have between 0 and 7 digits specified for fractional seconds.)
(DT_DBTIME2, 5) "16:34:52.12345"
This example casts a string literal to the DT_DBTIMESTAMP2 data type that uses 4 digits for fractional seconds. (The DT_DBTIMESTAMP2 data type can have between 0 and 7 digits specified for fractional seconds.)
(DT_DBTIMESTAMP2, 4) "1999-10-11 16:34:52.1234"
This example casts a string literal to the DT_DBTIMESTAMPOFFSET data type that uses 7 digits for fractional seconds. (The DT_DBTIMESTAMPOFFSET data typecan have between 0 and 7 digits specified for fractional seconds.)
(DT_DBTIMESTAMPOFFSET, 7) "1999-10-11 16:34:52.1234567 + 5:35"

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