nullableadj.

Brit.

/ˈnʌləbl/, U.S.

/ˈnələb(ə)l/

Origin: Formed within English, by derivation. Etymons: null v.¹, -able suffix, null n.¹

Etymology: In sense 1 < null v.¹ + -able suffix. In sense 2 apparently < null n.¹ + -able suffix. Compare annullable adj.

†1. Capable of being annulled. Obsolete. rare.

ΘΚΠ

society > law > rule of law > illegality > [adjective] > legally invalid or faulty > annulled or abrogated > able to be

voidable1485

repealable1570

reversable1581

countermandablea1626

reducible1656

annullable1675

avoidablea1677

elidable1687

quashable1705

nullablea1718

a1718 W. Penn Tracts in Wks. (1727) I. 683 If that Fundamental which gives to the People a Power of Legislation be not nullable.

2. Of a field in a database: capable of having a null value.

ΚΠ

1991 DBMS (Nexis) 4 Sept. 8 The updated column must be not nullable or variable length.

1994 PC Mag. (Nexis) 11 Oct. 241 This allowed the company to work around the engine's limitation on update-in-place for nullable columns.

2001 Intelligent Enterprise (Nexis) 24 May 60 If the column that is on the left side of the predicate is defined as not nullable, then the predicate with the MAX or MIN subselect is indeed Stage 2.

This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022).

单词	nullable
释义	nullableadj. Brit. /ˈnʌləbl/, U.S. /ˈnələb(ə)l/ Origin: Formed within English, by derivation. Etymons: null v.¹, -able suffix, null n.¹ Etymology: In sense 1 < null v.¹ + -able suffix. In sense 2 apparently < null n.¹ + -able suffix. Compare annullable adj. †1. Capable of being annulled. Obsolete. rare. ΘΚΠ society > law > rule of law > illegality > [adjective] > legally invalid or faulty > annulled or abrogated > able to be voidable1485 repealable1570 reversable1581 countermandablea1626 reducible1656 annullable1675 avoidablea1677 elidable1687 quashable1705 nullablea1718 a1718 W. Penn Tracts in Wks. (1727) I. 683 If that Fundamental which gives to the People a Power of Legislation be not nullable. 2. Of a field in a database: capable of having a null value. ΚΠ 1991 DBMS (Nexis) 4 Sept. 8 The updated column must be not nullable or variable length. 1994 PC Mag. (Nexis) 11 Oct. 241 This allowed the company to work around the engine's limitation on update-in-place for nullable columns. 2001 Intelligent Enterprise (Nexis) 24 May 60 If the column that is on the left side of the predicate is defined as not nullable, then the predicate with the MAX or MIN subselect is indeed Stage 2. This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022). < adj.a1718
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