Fixed install.xml typo

db/install.xml

@@ -66,7 +66,7 @@
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" NEXT="courseid"/>
         <FIELD NAME="courseid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="id" NEXT="attendanceid"/>
         <FIELD NAME="attendanceid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="courseid" NEXT="acronym"/>
-        <FIELD NAME="acronym" TYPE="char" LENGTH="2" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="courseid" NEXT="description"/>
+        <FIELD NAME="acronym" TYPE="char" LENGTH="2" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="attendanceid" NEXT="description"/>
         <FIELD NAME="description" TYPE="char" LENGTH="30" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="acronym" NEXT="grade"/>
         <FIELD NAME="grade" TYPE="int" LENGTH="3" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="description" NEXT="visible"/>
         <FIELD NAME="visible" TYPE="int" LENGTH="1" NOTNULL="true" UNSIGNED="true" DEFAULT="1" SEQUENCE="false" ENUM="false" PREVIOUS="grade" NEXT="deleted"/>
@@ -77,8 +77,8 @@
       </KEYS>
       <INDEXES>
         <INDEX NAME="courseid" UNIQUE="false" FIELDS="courseid" NEXT="attendanceid"/>
-        <INDEX NAME="attendanceid" UNIQUE="false" FIELDS="visible" PREVIOUS="courseid" NEXT="visible"/>
-        <INDEX NAME="visible" UNIQUE="false" FIELDS="visible" PREVIOUS="courseid" NEXT="deleted"/>
+        <INDEX NAME="attendanceid" UNIQUE="false" FIELDS="attendanceid" PREVIOUS="courseid" NEXT="visible"/>
+        <INDEX NAME="visible" UNIQUE="false" FIELDS="visible" PREVIOUS="attendanceid" NEXT="deleted"/>
         <INDEX NAME="deleted" UNIQUE="false" FIELDS="deleted" PREVIOUS="visible"/>
       </INDEXES>
     </TABLE>