What is the difference between check table and value table

This is a sort of master check. To be maintained as a customization object. When ever an employee Transacts we need to check whether that employee exists , so we can refer to the employee master table. Here data can be maintained at client level , no development involved. The contents of the check will be used as an input help F4 Help for a particular field on which a check table is assigned. You can also build a formula that calculates data for an individual record, takes an individual record as an argument, and provides an individual record as a return value.

Returning to our gallery example above, let's use the Gallery1. Selected property to display information from whatever record the user selects in that gallery. This formula returns a record that includes not only the data from the record that's currently selected in the gallery but also each control in that gallery.

For example, the record contains both a SampleText column, which matches the SampleText column in the original table, and a Subtitle1 column, which represents the label that shows the data from that column. Select the table icon in the Subtitle1 column to drill into that data. The Subtitle1 column might be named Subtitle2 or similar if you've added elements other than those that this topic specifies. Now that you have the selected record, you can extract individual fields from it with the.

Add a Label control, and then move it under the gallery and the button. You've taken the Selected property, which is a record, and extracted the SampleHeading property from it. Some functions operate by evaluating a formula across all the records of a table individually. The formula's result is used in various ways:. Inside these formulas, you can reference the fields of the record being processed. Each of these functions creates a "record scope" in which the formula is evaluated, where the fields of the record are available as top-level identifiers.

You can also reference control properties and other values from throughout your app. To create this example table in your app, insert a button, set its OnSelect property to this formula, and then select the button click it while you hold down the Alt key in Power Apps Studio :.

The first argument to Filter is the table of records to operate on, and the second argument is a formula. Filter creates a record scope for evaluating this formula in which the fields of each record are available, in this case Product , Quantity Requested , and Quantity Available.

The result of the comparison determines if each record should be included in the result of the function:. Here we are adding a calculated column to the result. AddColumns has its own record scope that it uses to calculate the difference between what has been requested and what is available.

Note that in the above, we used double quotes " in some places and single quotes ' in other places. Single quotes are required when referencing the value of an object, such as a field or table, in which the name of the object contains a space. Double quotes are used when we are not referencing the value of an object but instead talking about it, especially in situations in which the object does not yet exist, as in the case of AddColumns. Field names added with the record scope override the same names from elsewhere in the app.

When this happens, you can still access values from outside the record scope with the disambiguation operator:. If the table being operated upon is an expression, such as Filter Table , Only the innermost record scope can access fields from this table expression, by not using the disambiguation operator. What is going on here? The outermost ForAll function defines a record scope for X , allowing access to the Value field of each record as it is processed.

It can be accessed by simply using the word Value or by using X[ Value]. The innermost ForAll function defines another record scope for Y. Since this table also has a Value field defined, using Value here refers to the field in Y 's record and no longer the one from X.

Whenever an employee Transacts we need to check whether that employee exists, so we can refer to the employee master table.

The contents of the check will be used as an input help F4 Help for a particular field on which a check table is assigned But the contents of Value Table are never used in Input Help. Read Next:. Post a Comment. The main characteristic of a BAdI is that it provides a mechanism to change the functionality of a well-defined business function without making changes to the delivered source code. Future upgrades of the original business function can be applied without losing the customer-specific enhancements or the need to merge the changes.

Of course the rule is purely based on performance. Performance is way faster! Something to think about. Fandango68 Fandango68 3, 2 2 gold badges 34 34 silver badges 58 58 bronze badges. Douglas Douglas 29 2 2 bronze badges. And so would views. In fact, building a table results in a far slower function. An inline function, ie one with a single RETURNS clause wouldn't need to create any temporary tables so it would run at least twice as fast.

Possibly a lot faster, since the optimizer would be able to include its query in the optimization — Panagiotis Kanavos. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name.