syntax:types
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| syntax:types [2019/11/02 07:45] – [Sort order] dmitry | syntax:types [2021/05/12 07:33] (current) – [Empty values] dmitry | ||
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| ==== Empty values ==== | ==== Empty values ==== | ||
| - | If a table cell has no value - it's the so called //empty value//. You can check if a column value is empty using [[syntax: | + | If a table cell has no value - it's the so-called //empty value//. You can check if a column value is empty using the [[syntax: |
| - | Empty values are somewhat similar to nulls in relational databases but not exactly. For instance an empty value always equals | + | An empty value is somewhat similar to NULL in relational databases but not exactly. For instance, an empty value always equals another empty value. Also, it equals |
| All these comparisons are true: | All these comparisons are true: | ||
syntax/types.1572695141.txt.gz · Last modified: 2019/11/02 07:45 by dmitry