[VB.NET] Sintassi non corretta in query con valore data

[meronet]

mentre questa insert qui

strSQL = "INSERT INTO tbtaxi(data)VALUES(' '' & aaa & ' ' ) "


mi da


Unclosed quotation mark after the character string ' ) '.
Incorrect syntax near ' ) '.


mentre questa insert qui

strSQL = "INSERT INTO tbtaxi(data)VALUES(' ' ' & aaa & ' ' ' ) "

Conversion failed when converting datetime from character string.