Is there ever a time when you'd prefer empty values of a varchar to be an empty string instead of a NULL? : r/mysql
VARCHAR/CHAR.. column NOT NULLABLE but DEFAULT NULL may should show Default NULL(not blank) in table structure view · Issue #1419 · Sequel-Ace/Sequel-Ace · GitHub
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mysql - replace null value with empty string in several columns while fetching data - Stack Overflow
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String Functions in MySQL
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What's the happens if you try to insert null-value into column constraint not null at H2 DB | by freeism | Medium
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mysql - how to overcome these type of issues where null value inserted into primary key not null column in table - Database Administrators Stack Exchange
excel - "where is not null' can't work in mysql workbench - Stack Overflow
When to Use NULL and When to Use Empty String - Alibaba Cloud Community
how to handle empty string like coliumns=" " i want to insert mysqldb incolumn int type empty string means as Null but it shows error . | StreamSets Community
