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Deletes a column within a query object.

Method Signature

Arguments

Argument
Type
Required
Description
Default

Examples

Deletes a column from the query

Builds a simple query and removes the 'id' column.

Result: {"COLUMNS":["TITLE"],"DATA":[["Dewey defeats Truman"],["Man walks on Moon"]]}

Additional Examples

Related

qry1 = queryNew( "a,b,c", "varchar,varchar,varchar", [ 
	[
		"a1",
		"b1",
		"c1"
	],
	[
		"a2",
		"b2",
		"c2"
	],
	[
		"a3",
		"b3",
		"c3"
	]
] );
queryDeleteColumn( qry1, "c" );
writeOutput( qry1.COLUMNLIST );
qry2 = queryNew( "x,y,z", "varchar,varchar,varchar", [
	[
		"x1",
		"y1",
		"z1"
	],
	[
		"x2",
		"y2",
		"z2"
	],
	[
		"x3",
		"y3",
		"z3"
	]
] );
bx:loop query="qry2" {
	queryDeleteColumn( qry2, listFirst( qry2.COLUMNLIST ) );
}
writeDump( qry2.COLUMNLIST );
  1. BoxLang Language
  2. Reference
  3. Built-in Functions
  4. query

QueryDeleteColumn

PreviousQueryCurrentRowNextQueryDeleteRow
QueryDeleteColumn(query=[query], column=[string])

query

query

true

The query object to which the column should be deleted.

column

string

true

The name of the column to delete.

news = queryNew( "id,title", "integer,varchar", [ 
	{
		"id" : 1,
		"title" : "Dewey defeats Truman"
	},
	{
		"id" : 2,
		"title" : "Man walks on Moon"
	}
] );
queryDeleteColumn( news, "id" );
writeOutput( JSONSerialize( news ) );
Run Example
Run Example
QueryRecordCount
QueryColumnList
QueryRowSwap
QuerySort
QueryEach
QueryKeyExists
QueryColumnCount
QueryReduce
QueryCurrentRow
QueryColumnData
QueryRowData
QueryFilter
QueryAddRow
QueryNew
QueryReverse
QueryPrepend
QueryColumnExists
QueryAddColumn
QueryGetCell
QueryGetResult
QueryMap
QueryEvery
QueryRecordCount
QuerySome
QuerySetCell
QueryInsertAt
QueryClear
QuerySetRow
QueryColumnArray
QueryDeleteRow
QueryAppend
QuerySlice
QueryRegisterFunction
  • Method Signature
  • Arguments
  • Examples
  • Deletes a column from the query
  • Additional Examples
  • Related