prism/examples/prism-powerquery.html

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<h2>Comments</h2>
<pre><code>// This is a comment</code></pre>
<h2>Simple example</h2>
<pre><code>
let
x = 1 + 1,
y = 2 + 2,
z = y + 1
in
x + y + z
</code></pre>
<h2>Another example</h2>
<pre><code>
let Orders = Table.FromRecords({
[OrderID = 1, CustomerID = 1, Item = "fishing rod", Price = 100.0],
[OrderID = 2, CustomerID = 1, Item = "1 lb. worms", Price = 5.0],
[OrderID = 3, CustomerID = 2, Item = "fishing net", Price = 25.0]}),
#"Capitalized Each Word" = Table.TransformColumns(Orders, {"Item", Text.Proper})
in
#"Capitalized Each Word"
</code></pre>
<h2>Full example</h2>
<pre><code>
let
Source = Sales,
LookupTable = #table(
type table
[
#"FROM"=text,
#"TO"=text
],
{
{"CEE","Central & Eastern Europe"},
{"WE","Western Europe"}
}
),
JT = Table.NestedJoin(
Source,
{"Area"},
LookupTable,
{"FROM"},
"Map",
JoinKind.LeftOuter
),
#"Expanded Map" = Table.ExpandTableColumn(
JT,
"Map",
{"TO"},
{"TO"}
),
#"Replace non-matches with original value" = Table.AddColumn(
#"Expanded Map",
"Replaced",
each
if [TO] = null then [Area]
else [TO]
),
#"Remove original column" = Table.RemoveColumns(
#"Replace non-matches with original value",
{"Area", "TO"}
),
#"Renamed replace column to original name" = Table.RenameColumns(
#"Remove original column",
{{"Replaced", "Area"}}
)
in
#"Renamed replace column to original name"
</code></pre>