Transform Date from DMMYYYY to YYYY-MM-DD

Hi idramadhara ,

Assuming your original text date column is called [dateText], enter this as a new custom column:

Text.Combine(
    {
        Text.End([dateText], 4),
        Text.Range([dateText], Text.Length([dateText]) - 6, 2),
        Text.PadStart(Text.Start([dateText], Text.Length([dateText]) - 6), 2, "0")
    },
    "-"
)

This outputs in a text format, but will also be recognised perfectly by PQ if you want to convert to native date type.

Example output:

Full example query:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjQwMDICIqVYHRAHwQaz4BwktqWhIZBtDNFgamAOkYgFAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [dateText = _t]),
    addDate = Table.AddColumn(Source, "date", each
        Text.Combine(
            {
                Text.End([dateText], 4),
                Text.Range([dateText], Text.Length([dateText]) - 6, 2),
                Text.PadStart(Text.Start([dateText], Text.Length([dateText]) - 6), 2, "0")
            },
            "-"
        )
  )
in
    addDate

Pete