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What is the maximum length of each type of identifier in MySQL?
As we know that certain objects within MySQL are known as identifiers. These objects include a database, table, index, column, alias, view, stored procedure, partition, tablespace etc. Identifiers are stored using Unicode (UTF-8). The maximum length of each type of identifier is given in the following table:
| Sr. No. | Identifier |
Maximum Length (characters) |
|---|---|---|
| 1 | Database |
64 |
| 2 | Table | 64 |
| 3 | Column | 64 |
| 4 | Index |
64 |
| 5 | Constraint |
64 |
| 6 | Stored Procedure or Function |
64 |
| 7 | Trigger |
64 |
| 8 | View |
64 |
| 9 | Event |
64 |
| 10 | Tablespace |
64 |
| 11 | Log File Group |
64 |
| 12 | Alias |
256 |
| 13 | Compound Statement Label |
16 |
Updated on: 2020-02-06T10:31:07+05:30
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