SQL Server

JSON: Renaming and Deleting Members

See more JSON Examples

Demonstrates renaming and deleting members. This example uses the following JSON document:

{
   "apple": "red",
   "lime": "green",
   "banana": "yellow",
   "broccoli": "green",
   "strawberry": "red"
}

SQL Server

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    DECLARE @json int
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @json OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    EXEC sp_OAMethod @json, 'Load', @success OUT, '{"apple": "red","lime": "green","banana": "yellow","broccoli": "green","strawberry": "red"}'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @json, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @json
        RETURN
      END

    -- Rename "lime" to "lemon".
    EXEC sp_OAMethod @json, 'Rename', @success OUT, 'lime', 'lemon'
    -- Change the color to yellow:
    EXEC sp_OAMethod @json, 'SetStringOf', @success OUT, 'lemon', 'yellow'

    -- Rename by index.  Banana is at index 2 (apple is at index 0)
    EXEC sp_OAMethod @json, 'RenameAt', @success OUT, 2, 'bartlett_pear'

    -- Delete broccoli by name
    EXEC sp_OAMethod @json, 'Delete', @success OUT, 'broccoli'

    -- Delete apple by index.  Apple is at index 0.
    EXEC sp_OAMethod @json, 'DeleteAt', @success OUT, 0

    EXEC sp_OASetProperty @json, 'EmitCompact', 0
    EXEC sp_OAMethod @json, 'Emit', @sTmp0 OUT
    PRINT @sTmp0

    EXEC @hr = sp_OADestroy @json


END
GO