TimeStamp Project Schema

schema

<?xml version="1.0" encoding="utf-8" ?>
<!-- SQL XML created by WWW SQL Designer, http://code.google.com/p/wwwsqldesigner/ -->
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<sql>
<datatypes db="mysql">
  <group label="Numeric" color="rgb(238,238,170)">
    <type label="Integer" length="0" sql="INTEGER" re="INT" quote=""/>
    <type label="Decimal" length="1" sql="DECIMAL" re="DEC" quote=""/>
    <type label="Single precision" length="0" sql="FLOAT" quote=""/>
    <type label="Double precision" length="0" sql="DOUBLE" re="DOUBLE" quote=""/>
  </group>

  <group label="Character" color="rgb(255,200,200)">
    <type label="Char" length="1" sql="CHAR" quote="'"/>
    <type label="Varchar" length="1" sql="VARCHAR" quote="'"/>
    <type label="Text" length="0" sql="MEDIUMTEXT" re="TEXT" quote="'"/>
    <type label="Binary" length="1" sql="BINARY" quote="'"/>
    <type label="Varbinary" length="1" sql="VARBINARY" quote="'"/>
    <type label="BLOB" length="0" sql="BLOB" re="BLOB" quote="'"/>
  </group>

  <group label="Date &amp; Time" color="rgb(200,255,200)">
    <type label="Date" length="0" sql="DATE" quote="'"/>
    <type label="Time" length="0" sql="TIME" quote="'"/>
    <type label="Datetime" length="0" sql="DATETIME" quote="'"/>
    <type label="Year" length="0" sql="YEAR" quote=""/>
    <type label="Timestamp" length="0" sql="TIMESTAMP" quote="'"/>
  </group>

  <group label="Miscellaneous" color="rgb(200,200,255)">
    <type label="ENUM" length="1" sql="ENUM" quote=""/>
    <type label="SET" length="1" sql="SET" quote=""/>
    <type label="Bit" length="0" sql="bit" quote=""/>
  </group>
</datatypes><table x="111" y="232" name="students">
<row name="id" null="1" autoincrement="1">
<datatype>INTEGER</datatype>
<default>NULL</default></row>
<row name="grade_level_id" null="1" autoincrement="0">
<datatype>INTEGER</datatype>
<default>NULL</default><relation table="grade_levels" row="id" />
</row>
<row name="afterschool_class_id" null="1" autoincrement="0">
<datatype>INTEGER</datatype>
<default>NULL</default><relation table="afterschool_classes" row="id" />
</row>
<row name="name" null="1" autoincrement="0">
<datatype>INTEGER</datatype>
<default>NULL</default></row>
<key type="PRIMARY" name="">
<part>id</part>
</key>
</table>
<table x="715" y="270" name="grade_levels">
<row name="id" null="1" autoincrement="1">
<datatype>INTEGER</datatype>
<default>NULL</default></row>
<row name="year" null="1" autoincrement="0">
<datatype>VARCHAR</datatype>
<default>NULL</default></row>
<key type="PRIMARY" name="">
<part>id</part>
</key>
</table>
<table x="741" y="41" name="subjects">
<row name="id" null="1" autoincrement="1">
<datatype>INTEGER</datatype>
<default>NULL</default></row>
<row name="name" null="1" autoincrement="0">
<datatype>VARCHAR</datatype>
<default>NULL</default></row>
<key type="PRIMARY" name="">
<part>id</part>
</key>
</table>
<table x="455" y="358" name="afterschool_classes">
<row name="id" null="1" autoincrement="1">
<datatype>INTEGER</datatype>
<default>NULL</default></row>
<row name="grade_level_id" null="1" autoincrement="0">
<datatype>INTEGER</datatype>
<default>NULL</default><relation table="grade_levels" row="id" />
</row>
<row name="teacher_id" null="1" autoincrement="0">
<datatype>INTEGER</datatype>
<default>NULL</default><relation table="teachers" row="id" />
</row>
<key type="PRIMARY" name="">
<part>id</part>
</key>
</table>
<table x="463" y="57" name="assignments">
<row name="id" null="1" autoincrement="1">
<datatype>INTEGER</datatype>
<default>NULL</default></row>
<row name="subject_id" null="1" autoincrement="0">
<datatype>INTEGER</datatype>
<default>NULL</default><relation table="subjects" row="id" />
</row>
<row name="grade_level_id" null="1" autoincrement="0">
<datatype>INTEGER</datatype>
<default>NULL</default><relation table="grade_levels" row="id" />
</row>
<row name="completion percentage" null="1" autoincrement="0">
<datatype>DECIMAL</datatype>
<default>NULL</default></row>
<row name="description" null="1" autoincrement="0">
<datatype>VARCHAR</datatype>
<default>NULL</default></row>
<row name="due_date" null="1" autoincrement="0">
<datatype>DATETIME</datatype>
<default>NULL</default></row>
<key type="PRIMARY" name="">
<part>id</part>
</key>
</table>
<table x="808" y="135" name="users">
<row name="id" null="1" autoincrement="1">
<datatype>INTEGER</datatype>
<default>NULL</default></row>
<row name="email" null="1" autoincrement="0">
<datatype>INTEGER</datatype>
<default>NULL</default></row>
<row name="password" null="1" autoincrement="0">
<datatype>INTEGER</datatype>
<default>NULL</default></row>
<key type="PRIMARY" name="">
<part>id</part>
</key>
</table>
<table x="40" y="415" name="attendance">
<row name="id" null="1" autoincrement="1">
<datatype>INTEGER</datatype>
<default>NULL</default></row>
<row name="student_id" null="1" autoincrement="0">
<datatype>INTEGER</datatype>
<default>NULL</default><relation table="students" row="id" />
</row>
<row name="session_id" null="1" autoincrement="0">
<datatype>INTEGER</datatype>
<default>NULL</default><relation table="session" row="id" />
</row>
<row name="status" null="1" autoincrement="0">
<datatype>VARCHAR</datatype>
<default>NULL</default></row>
<key type="PRIMARY" name="">
<part>id</part>
</key>
</table>
<table x="135" y="45" name="student_assignments">
<row name="id" null="1" autoincrement="1">
<datatype>INTEGER</datatype>
<default>NULL</default></row>
<row name="student_id" null="1" autoincrement="0">
<datatype>INTEGER</datatype>
<default>NULL</default><relation table="students" row="id" />
</row>
<row name="assignment_id" null="1" autoincrement="0">
<datatype>INTEGER</datatype>
<default>NULL</default><relation table="assignments" row="id" />
</row>
<row name="completion_time" null="1" autoincrement="0">
<datatype>TIMESTAMP</datatype>
<default>NULL</default></row>
<key type="PRIMARY" name="">
<part>id</part>
</key>
</table>
<table x="783" y="376" name="teachers">
<row name="id" null="1" autoincrement="1">
<datatype>INTEGER</datatype>
<default>NULL</default></row>
<row name="name" null="1" autoincrement="0">
<datatype>VARCHAR</datatype>
<default>NULL</default></row>
<key type="PRIMARY" name="">
<part>id</part>
</key>
</table>
<table x="239" y="409" name="session">
<row name="id" null="1" autoincrement="1">
<datatype>INTEGER</datatype>
<default>NULL</default></row>
<row name="afterschool_class_id" null="1" autoincrement="0">
<datatype>INTEGER</datatype>
<default>NULL</default><relation table="afterschool_classes" row="id" />
</row>
<row name="date" null="1" autoincrement="0">
<datatype>DATE</datatype>
<default>NULL</default></row>
<row name="start_time" null="1" autoincrement="0">
<datatype>DATETIME</datatype>
<default>NULL</default></row>
<key type="PRIMARY" name="">
<part>id</part>
</key>
</table>
</sql>