Boolean values Boolean (true or false) arguments are either YES, ON, 1, TRUE, Y, or T if true, or NO, OFF, 0, FALSE, N, or F if false.
Case sensitivity Connection parameters are case insensitive, although their values may not be (for example, file names on Unix).
In order of precedence, you can be get the connection parameters used by the interface library from the following places:
Connection string You can pass parameters explicitly in the connection string.
SQLCONNECT environment variable The SQLCONNECT environment variable can store connection parameters.
Data sources ODBC data sources can store parameters.
The entries in a connect string are read left to right. If the same parameter is specified more than once, the last one in the string applies. ODBC, OLE DB, Sybase Central, Interactive SQL, and the SQL Anywhere Console utility are exceptions to this: if the same parameter is specified more than once, the first string applies.
If a string contains a data source or file data source entry, the profile is read from the configuration file, and the entries from the file are used if they are not already set. For example, if a connection string contains a data source name and sets some of the parameters contained in the data source explicitly, then in case of conflict the explicit parameters are used.
Connection string parsing If there is a problem parsing the connection string, an error is generated that indicates which connection parameter caused the problem.
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