double precision number

基本解釋

Gets the value of the column as a double-precision floating point number.
指定的列不包含雙精度浮點(diǎn)數(shù)。
Regan speculated that this particular number is troublesome because it is the "largest subnormal double-precision floating-point number."
Regan 推測(cè)這個(gè)特殊數(shù)字的麻煩之処在於它是“最大的次法線雙精度浮點(diǎn)數(shù)”。
The DOUBLE type can also be referred to as DOUBLE PRECISION, although it isn't clear why you would want to type the extra word every time you need a double-precision number.
DOUBLE 類型也可以表示爲(wèi) DOUBLE PRECISION，雖然爲(wèi)什麼在需要雙精度數(shù)字時(shí)要輸入額外的單詞，原因不明。