Arm Treasure Data limits how you name entities, and the number of characters you can use in entities.

Also refer to Upper Limits (MAX) for size and volume limits on Treasure Data entities.

Naming Conventions

Name rules exist for:

Tables and Databases

Name rules for tables and databases are as follows:

Name rules for columns are as follows:

only lower case letters, numbers, the _ (underscore)
cannot begin with a number, for example: 0422col is not an acceptable column name

The TD account owner or administrator specify password criteria.

The general, default rules for user passwords are as follows:

For a list of Basic Latin (ASCII) characters, go to the Library of Congress Basic Latin (ASCII) Code Table.