FUNCTIONUnder review

Dow

Dow( dData ) --> nDia

Returns the weekday number.

DowAdvPL

01 · OVERVIEW

Overview

Dow uses Sunday=1 and Saturday=7; a blank date produces zero. This differs from Day, day of month, and CDow, English weekday name. The community example uses Date and depends on execution day; the adaptation uses a fixed SToD date for a verifiable expectation independent of configured input format. (TOTVS, n.d., ref. 1)

02 · SYNTAX

Syntax

Dow( dData ) --> nDia

Parameters

dData

DateRequired

Reference date.

Return value

Number from 0 to 7.

03 · PRACTICAL EXAMPLE

Commented example

#Include "Protheus.ch"

User Function Ed359()
    // Fixed Monday independent of the clock.
    ConOut(cValToChar(Dow(SToD("20261026"))))
Return Nil

Expected result

Expected result: 2. Under review: editorial example neither compiled nor run in Protheus. Check includes, release, RDD and context before testing.

BEST PRACTICES

Do not assume ISO numbering with Monday=1.
Under review: editorial example neither compiled nor run in Protheus. Check includes, release, RDD and context before testing.

Dow

Overview

Syntax

Parameters

Return value

Commented example

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