ZarahDB..::..Exists Method (Uri, String, String, Nullable<(Of <(<'Boolean>)>)>)

Tests if the specified key exists.

Namespace: ZarahDB_Library
Assembly: ZarahDB_Library (in ZarahDB_Library.dll)

Syntax

public static bool Exists(
	Uri instance,
	string table,
	string key,
	Nullable<bool> checkExactMatch
)

Public Shared Function Exists ( _
	instance As Uri, _
	table As String, _
	key As String, _
	checkExactMatch As Nullable(Of Boolean) _
) As Boolean

public:
static bool^ Exists(
	Uri^ instance, 
	String^ table, 
	String^ key, 
	Nullable<bool^> checkExactMatch
)

Parameters

instance: Type: Uri
The instance.

table: Type: String
The table.

key: Type: String
The key.

checkExactMatch: Type: Nullable<(Of <(<'Boolean>)>)>
Key collisions are possible. if set to true the file is checked to contain the exact key if there is any chance of collision. Set this to false for the fastest execution when key collisions are known not to exist.

Return Value

System.Boolean

See Also

Exists Overload

ZarahDB_Library Namespace