Long lookupStringID(String value) throws IOException {
		Field[] records = table.findRecords(new StringField(value), STRING_VALUE_COL);
		if (records == null || records.length == 0) {
			return null;
		}
		return records[0].getLongValue();
	}
Lookup existing ID or return null for String value.
@param value the string value
@return the existing interned string primary key as LongField, or null if nonexistent
@throws IOException if the database has a problem
Ghidra/Features/FunctionID/src/main/java/ghidra/feature/fid/db/StringsTable.java