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<meta>
<topic id="textsharedguidedata_tabledefinexml" indexer="include" status="PUBLISH">
<title xml-lang="en-US" id="tit">Table Design</title>
<filename>/text/shared/guide/data_tabledefine.xhp</filename>
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<body>
<bookmark xml-lang="en-US" branch="index" id="bm_id3155448"><bookmark_value>tables in databases; creating in design view (manually)</bookmark_value>
<bookmark_value>designing; database tables</bookmark_value>
<bookmark_value>properties;fields in databases</bookmark_value>
<bookmark_value>fields;database tables</bookmark_value>
<bookmark_value>AutoValue (Base)</bookmark_value>
<bookmark_value>primary keys;design view</bookmark_value>
</bookmark><comment>MW deleted "database tables;" and changed "tables in databases;"</comment><comment>UFI added AutoValue and Primary Key entry - i48831</comment><comment>MW changed Tables in databases, AutoValue and Primary Key entries</comment>
<paragraph xml-lang="en-US" id="par_id3155448" role="paragraph" localize="false"/>
<paragraph xml-lang="en-US" id="hd_id3149798" role="heading" level="1"><variable id="data_tabledefine"><link href="text/shared/guide/data_tabledefine.xhp" name="Table Design">Table Design</link>
</variable></paragraph>
<paragraph xml-lang="en-US" id="par_id3155535" role="paragraph">This section contains information about how to create a new database table in the <link href="text/sdatabase/05010000.xhp" name="design view">design view</link>.</paragraph>
<paragraph xml-lang="en-US" id="par_id3154288" role="paragraph">Open the database file of the database where you want a new table. Click the <emph>Tables</emph> icon. Choose <emph>Create Table in Design View</emph> to create a new table.</paragraph>
<paragraph xml-lang="en-US" id="par_id3146798" role="paragraph">In the Design view, you can now create the fields for your table.</paragraph>
<list type="unordered">
<listitem>
<paragraph xml-lang="en-US" id="par_id3153349" role="listitem">Enter new fields in rows from top to bottom. Click the <emph>Field Name</emph> cell and enter a field name for each data field.</paragraph>
</listitem>
<listitem>
<paragraph xml-lang="en-US" id="par_id1595507" role="listitem">Include a "primary key" data field. Base needs a primary key to be able to edit the table contents. A primary key has unique contents for each data record. For example, insert a numerical field, right-click the first column, and choose <emph>Primary Key</emph> from the context menu. Set <emph>AutoValue</emph> to "Yes", so Base can automatically increment the value for each new record.</paragraph>
</listitem>
<listitem>
<paragraph xml-lang="en-US" id="par_id3150084" role="listitem">In the next cell to the right, define the <emph>Field Type</emph>. When you click in the cell, you can select a field type in the combo box.</paragraph>
</listitem>
</list>
<paragraph xml-lang="en-US" id="par_id3154760" role="note">Each field can only accept data corresponding to the specified field type. For example, it is not possible to enter text in a number field. Memo fields in dBASE III format are references to internally-managed text files which can hold up to 64 kB text.</paragraph>
<paragraph xml-lang="en-US" id="par_id3149456" role="paragraph">You can enter an optional <emph>Description</emph> for each field. The text of the description will appear as a tip on the column headings in the table view.</paragraph>
<paragraph xml-lang="en-US" id="hd_id3153379" role="heading" level="2">Field Properties</paragraph>
<paragraph xml-lang="en-US" id="par_id3148798" role="paragraph">Enter properties for each selected data field. Depending on the database type, some input facilities may not be available.</paragraph>
<paragraph xml-lang="en-US" id="par_id3144762" role="paragraph">In the <emph>Default value</emph> box, enter the default contents for every new record. This contents can be edited later.</paragraph>
<paragraph xml-lang="en-US" id="par_id3150869" role="paragraph">In the <emph>Entry required</emph> box, specify whether or not the field may remain empty.</paragraph>
<paragraph xml-lang="en-US" id="par_id3154908" role="paragraph">For the <emph>Length</emph> box, a combo box may be shown that provides the available choices.</paragraph>
<embed href="text/shared/00/00000004.xhp#related"/>
<embed href="text/shared/guide/database_main.xhp#database_main"/>
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