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They can change the values of fields in the data source, submit to and query databases, display messages, open and close forms, and switch to different views of the form. Data validation tests the validity of input into fields by comparing the input to patterns, checking for the correct data type (such as a string or an integer), and in other ...
Power Query was first announced in 2011 under the codename "Data Explorer" as part of Azure SQL Labs. In 2013, in order to expand on the self-service business intelligence capabilities of Microsoft Excel, the project was redesigned to be packaged as an add-in Excel and was renamed "Data Explorer Preview for Excel", [4] and was made available for Excel 2010 and Excel 2013. [5]
This is one example of occasion where the start value of an AutoNumber field is raised, so that customer number 6 has, say, AutoNumber field value 10006. [2] Using random values is desirable in cases where it would be unfortunate if it were possible to guess the next values assigned to new rows in the table. This usage is rare, however. [2]
Fixed columns take up a 1-bit to represent NULLity of the column value and a fixed amount of space in each record in which that column, or a later defined fixed column, is set. Variable columns are essentially columns that take up a variable amount of space in each record in which they are set, depending upon the size of the particular column ...
Column titles can optionally show options to control the layout of the column. Multithreaded calculation of formulae, to speed up large calculations, especially on multi-core/multi-processor systems. User Defined Functions (UDF), which are custom functions written to supplement Excel's set of built-in functions, supports the increased number of ...
When a column contains repeated values, sorting the column should maintain the original order of rows within each subset that shares the same value. This is known as stable sorting. As a result, multi-key sorting (sorting by primary, secondary, tertiary keys, etc.) can be achieved by sorting the least significant key first and the most ...
Generating surrogate-key values; Transposing or pivoting (turning multiple columns into multiple rows or vice versa) Splitting a column into multiple columns (e.g., converting a comma-separated list, specified as a string in one column, into individual values in different columns) Disaggregating repeating columns
Change data capture both increases in complexity and reduces in value if the source system saves metadata changes when the data itself is not modified. For example, some Data models track the user who last looked at but did not change the data in the same structure as the data. This results in noise in the Change Data Capture.