# ij commands

`ij` accepts several commands to control its use of JDBC. It recognizes a semicolon as the end of an `ij` or SQL command; it treats semicolons within SQL comments, strings, and delimited identifiers as part of those constructs, not as the end of the command. Semicolons are required at the end of an `ij` or SQL statement.

All `ij` commands, identifiers, and keywords are case-insensitive.

Commands can span multiple lines without any special escaping for the ends of lines. This means that if a string spans a line, the new lines will show up in the value in the string.

`ij` treats any command that it does not recognize as an SQL command to be passed to the underlying connection, so syntactic errors in `ij` commands will cause them to be handed to the SQL engine and will probably result in SQL parsing errors.

- Conventions for ij examples
- ij SQL command behavior

Parent topic: ij commands and errors reference
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ij errors
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