# Class: AlterTableDropColumn

Defined in: packages/core/src/models/DDLStatements.ts:251

ALTER TABLE ... DROP COLUMN action.

Extends

• SqlComponent

Constructors

Constructor

new AlterTableDropColumn(params): AlterTableDropColumn

Defined in: packages/core/src/models/DDLStatements.ts:257

Parameters

params

columnName

IdentifierString

ifExists?

boolean

behavior?

DropBehavior

Returns

AlterTableDropColumn

Overrides

SqlComponent.constructor

Properties

kind

static kind: symbol

Defined in: packages/core/src/models/DDLStatements.ts:252

Overrides

SqlComponent.kind

---

columnName

columnName: IdentifierString

Defined in: packages/core/src/models/DDLStatements.ts:253

---

ifExists

ifExists: boolean

Defined in: packages/core/src/models/DDLStatements.ts:254

---

behavior

behavior: DropBehavior

Defined in: packages/core/src/models/DDLStatements.ts:255

---

comments

comments: null | string[] = null

Defined in: packages/core/src/models/SqlComponent.ts:29

Inherited from

SqlComponent.comments

---

positionedComments

positionedComments: null | PositionedComment[] = null

Defined in: packages/core/src/models/SqlComponent.ts:32

Inherited from

SqlComponent.positionedComments

Methods

getKind()

getKind(): symbol

Defined in: packages/core/src/models/SqlComponent.ts:15

Returns

symbol

Inherited from

SqlComponent.getKind

---

accept()

accept<T&gt;(visitor): T

Defined in: packages/core/src/models/SqlComponent.ts:19

Type Parameters

T

T

Parameters

visitor

SqlComponentVisitor<T&gt;

Returns

T

Inherited from

SqlComponent.accept

---

toSqlString()

toSqlString(formatter): string

Defined in: packages/core/src/models/SqlComponent.ts:23

Parameters

formatter

SqlComponentVisitor<string&gt;

Returns

string

Inherited from

SqlComponent.toSqlString

---

addPositionedComments()

addPositionedComments(position, comments): void

Defined in: packages/core/src/models/SqlComponent.ts:37

Add comments at a specific position

Parameters

position

"before" | "after"

comments

string[]

Returns

void

Inherited from

SqlComponent.addPositionedComments

---

getPositionedComments()

getPositionedComments(position): string[]

Defined in: packages/core/src/models/SqlComponent.ts:56

Get comments for a specific position

Parameters

position

"before" | "after"

Returns

string[]

Inherited from

SqlComponent.getPositionedComments

---

getAllPositionedComments()

getAllPositionedComments(): string[]

Defined in: packages/core/src/models/SqlComponent.ts:66

Get all positioned comments as a flat array in order (before, after)

Returns

string[]

Inherited from

SqlComponent.getAllPositionedComments