Questions tagged [identifier]

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Does the SQL-1992 standard restrict naming identifiers to 18 characters?

In this draft of SQL:1992, I found… Section 5.2 Leveling Rules .... The following restrictions apply for Entry SQL in addition to any Intermediate SQL restrictions: a) No <...
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How do I adopt the PostgreSQL naming convention in legacy database?

I realize I'll need to update the queries, but if I have a database that has camelCase or spaces in it, you have to use double quotes on the identifiers (viz. schema, table, column). How do I migrate ...
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What do we call the equivalent of CSS “Specificity” in SQL?

In CSS, the more HTML elements you specify, the more precedence the selector gets. This is known as "specificity." For example, div p span {...} Is more specific than, and thus would override: span ...