126 lines
6.5 KiB
HTML
126 lines
6.5 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta name="DC.Title" content="Use the LABEL ON statement" />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Use the LABEL ON statement</title>
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</head>
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<body id="rzatclabelon"><a name="rzatclabelon"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Use the LABEL ON statement</h1>
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<div><div class="section">Normally, the column name is used as the column heading when showing
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the output of a SELECT statement in interactive SQL. By using the LABEL ON
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statement, you can create a more descriptive label for the column name. Because
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you run your examples in interactive SQL, you use the LABEL ON statement to
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change the column headings. Even though the column names were descriptive,
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it is easier to read if the column headings show each part of the name on
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a single line. It also allows you to see more columns of data on a single
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display.<p>To change the labels for your columns, follow these steps:</p>
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</div>
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<ol><li class="stepexpand"><span>Enter <kbd class="userinput">LABEL ON COLUMN</kbd> on the Enter SQL Statements
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display.</span></li>
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<li class="stepexpand"><span>Press F4 (Prompt). The following display appears:</span> <div class="p"><pre class="screen"> Specify LABEL ON Statement
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Type choices, press Enter.
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Label on . . . . 2 1=Table or view
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2=Column
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3=Package
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4=Alias
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Table or view INVENTORY_LIST______ Name, F4 for list
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Collection . . SAMPLECOLL__ Name, F4 for list
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Option . . . . . 1 1=Column heading
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2=Text
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F3=Exit F4=Prompt F5=Refresh F12=Cancel F20=Display full names
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F21=Display statement</pre>
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</div>
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</li>
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<li class="stepexpand"><span>Type in the name of the table and schema containing the columns
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for which you want to add labels.</span></li>
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<li class="stepexpand"><span>Press Enter. The following display is shown, prompting you for
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each of the columns in the table.</span> <div class="p"><pre class="screen"> Specify LABEL ON Statement
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Type information, press Enter.
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Column Heading
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Column ....+....1....+....2....+....3....+....4....+....5....
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ITEM_NUMBER <strong>'ITEM NUMBER'</strong>___________________________
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ITEM_NAME <strong>'ITEM NAME'</strong>_____________________________
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UNIT_COST <strong>'UNIT COST'</strong>_____________________________
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QUANTITY_ON_HAND <strong>'QUANTITY ON HAND'</strong>_________
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LAST_ORDER_DATE <strong>'LAST ORDER DATE'</strong>_________
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ORDER_QUANTITY <strong>'NUMBER ORDERED'</strong>__________________________
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Bottom
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F3=Exit F5=Refresh F6=Insert line F10=Copy line F12=Cancel
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F14=Delete line F19=Display system column names F24=More keys
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</pre>
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</div>
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</li>
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<li class="stepexpand"><span>Type the column headings for each of the columns. Column headings
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are defined in 20 character sections. Each section is displayed
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on a different line when showing the output of a SELECT statement. The ruler
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across the top of the column heading entry area can be used to easily space
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the headings correctly. </span></li>
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<li class="stepexpand"><span>Press Enter.</span></li>
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</ol>
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<div class="section">The following message indicates that the LABEL ON statement was successful:<pre>LABEL ON for INVEN00001 in SAMPLECOLL completed.</pre>
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</div>
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<div class="section">The table name in the message is the system table name for this table,
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not the name that was actually specified in the statement. <span class="keyword">DB2 Universal Database™ for iSeries™</span> maintains
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two names for tables with names longer than ten characters. For more information
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about system table names, see the CREATE TABLE statement in the <a href="../db2/rbafzmst02.htm">SQL Reference</a> topic.<div class="note"><span class="notetitle">Note:</span> The <samp class="codeph">LABEL
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ON</samp> statement can also be typed in directly on the Enter SQL statements
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display as follows:<pre><strong>LABEL ON</strong> SAMPLECOLL.INVENTORY_LIST
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(ITEM_NUMBER <strong>IS</strong> ’ITEM NUMBER ’,
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ITEM_NAME <strong>IS</strong> ’ITEM NAME ’,
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UNIT_COST <strong>IS</strong> ’UNIT COST ’,
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QUANTITY_ON_HAND <strong>IS</strong> ’QUANTITY ON HAND ’,
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LAST_ORDER_DATE <strong>IS</strong> ’LAST ORDER DATE ’,
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ORDER_QUANTITY <strong>IS</strong> ’NUMBER ORDERED ’)</pre>
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</div>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzatcgetstartsql.htm" title="This topic describes how to create and work with schemas, tables, and views using SQL statements in interactive SQL.">Get started with SQL</a></div>
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</div>
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</div>
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</body>
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</html>
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