Select In Sql Sql Bits Kovolff

Summary

In this video we play around with some queries To show various fields of a table: Use Intersects allow you to see those rows common to the two tables being intersected i.e. IN (in_content) in_content is list of elements the query has to take into account when filtering in_inhalt examples: Basic Query to get everything in a table: i.e. NULL = No Value NULL values filtering: WHERE field_name IS NULL or WHERE field_name IS NOT NULL The COALESCE ... Wildcard / placeholder for an infinite number of characters z.B. Sorting in SQLis accomplished with ORDER BY Sort keys are either the field names or column numbers To sort data in a ... Views are saved queries. What is saved is only the definition of the query not the data. Hence views are useful to save specific ...