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3 | 3 | <chapter id="ddl"> |
4 | 4 | <title>Data Definition</title> |
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34 | 34 | A table in a relational database is much like a table on paper: It |
35 | 35 | consists of rows and columns. The number and order of the columns |
36 | 36 | is fixed, and each column has a name. The number of rows is |
37 | | - variable-- it reflects how much data is stored at a given moment. |
| 37 | + variable— it reflects how much data is stored at a given moment. |
38 | 38 | SQL does not make any guarantees about the order of the rows in a |
39 | 39 | table. When a table is read, the rows will appear in random order, |
40 | 40 | unless sorting is explicitly requested. This is covered in <xref |
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