QueryDeleteRow

This function deletes a row from the query

Method Signature

QueryDeleteRow(query=[query], row=[integer])

Arguments

Argument

Type

Required

Description

Default

query

true

The query to delete the row from

row

integer

true

The row index to delete

Examples

Implicit deletion of the last row

Builds a simple query and removes the last row by not specifying a row index.

news = queryNew( "id,title", "integer,varchar", [ 
	{
		"id" : 1,
		"title" : "Dewey defeats Truman"
	},
	{
		"id" : 2,
		"title" : "Man walks on Moon"
	}
] );
queryDeleteRow( news );
writeOutput( news[ "title" ][ 1 ] );

Result: Dewey defeats Truman

Deletes a specific row from the query

Builds a simple query and removes one of the rows.

Run Example

news = queryNew( "id,title", "integer,varchar", [ 
	{
		"id" : 1,
		"title" : "Dewey defeats Truman"
	},
	{
		"id" : 2,
		"title" : "Man walks on Moon"
	}
] );
queryDeleteRow( news, 1 );
writeOutput( news[ "title" ][ 1 ] );

Result: Man walks on Moon

Additional Examples

Run Example

qry1 = queryNew( "a,b,c", "varchar,varchar,varchar", [ 
	[
		"a1",
		"b1",
		"c1"
	],
	[
		"a2",
		"b2",
		"c2"
	],
	[
		"a3",
		"b3",
		"c3"
	]
] );
queryDeleteRow( qry1, 2 );
writeDump( queryColumnData( qry1, "a" ).toList() );
qry2 = queryNew( "a,b,c", "varchar,varchar,varchar", [
	[
		"a1",
		"b1",
		"c1"
	],
	[
		"a2",
		"b2",
		"c2"
	],
	[
		"a3",
		"b3",
		"c3"
	]
] );
for( i = 3; i >= 1; i-- ) {
	queryDeleteRow( qry2, i );
}
writeDump( qry2.RECORDCOUNT );

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Last updated 23 days ago

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