Handle non-ASCII characters

The processors obtain the code set for use in source files from the client locale.

Within the source file, you can use non-ASCII characters for the following program objects:

comments
Names of SQL identifiers such as databases, tables, columns, views, constraints, prepared statements, and cursors
For more information, see Name database objects.
host variable and indicator variable names
For example, in the program, this use of multibyte characters is valid:
```
char A¹A²[20], B¹B²[20];
```
```
EXEC SQL select col1, col2 into :A¹A² :B¹B²;
```
For more information about host variables, see Non-ASCII characters in host variables.
Literal strings
For example, in the program, the following use of multibyte characters is valid:
```
EXEC SQL insert into tbl1 (nchr1) values 'A¹A²B¹B²';
```
File names and path names, if your operating system supports multibyte characters in file names and path names.

Tip: Some C-language compilers support multibyte characters in literals or comments only. For such compilers, you might need to set the ESQLMF and CC8BITLEVEL environment variables so that the processor calls a multibyte filter. For more information, see Generate non-ASCII file names.

To use non-ASCII characters in your source file, the client locale must support them. For information about the use of non-ASCII characters, see Non-ASCII characters in identifiers.