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Every query has a final row with an asterisk beside it and null values for every field? Why does this show up? I cant seem to find an explanation for it. Even putting a WHERE clause doesnt seem to get rid of it. Is this only happening to the MySQL implementation alone?
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You can use a WHERE clause to retrieve rows that contain a null value in a specific column. You can also use a predicate to exclude null values. You cannot use the equal sign to retrieve rows that contain a null value. (WHERE column-name = NULL is not allowed.)
The IS NULL operator IS NULL is a logical operator in SQL that allows you to exclude rows with missing data from your results. Some tables contain null values—cells with no data in them at all.
Example - With SELECT Statement Here is an example of how to use the MySQL IS NOT NULL condition in a SELECT statement: SELECT * FROM contacts WHERE last_name IS NOT NULL; This MySQL IS NOT NULL example will return all records from the contacts table where the last_name does not contain a null value.
You can easily change this limit by going to MySQL Workbench >> Edit >> Preferences >> SQL Queries tab. Over here you will option to Limit Rows. You can set this to very high value or uncheck the option. When you uncheck that option, it will retrieve all the rows from a query (equivalent to no limits).
It is for inserting a new row, you enter the values there.
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