145 lines
7.9 KiB
HTML
145 lines
7.9 KiB
HTML
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<meta name="DC.Title" content="Query a database using Interactive SQL" />
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<meta name="abstract" content="Using the SQL SELECT statement and Interactive SQL, you can query a database on another iSeries server for data you need to create or update a table on the local server." />
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<meta name="description" content="Using the SQL SELECT statement and Interactive SQL, you can query a database on another iSeries server for data you need to create or update a table on the local server." />
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<title>Query a database using Interactive SQL</title>
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</head>
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<body id="rbal1queryint"><a name="rbal1queryint"><!-- --></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">Query a database using Interactive SQL</h1>
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<div><p>Using the SQL SELECT statement and Interactive SQL, you can query
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a database on another <span class="keyword">iSeries™ server</span> for
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data you need to create or update a table on the local server. </p>
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<div class="section"> <p>The SELECT statement allows you to specify the table name and
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columns containing the desired data, and selection criteria or filters that
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determine which rows of data are retrieved. If the SELECT statement is successful,
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the result is one or more rows of the specified table.</p>
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<p>In addition to
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getting data from one table, SQL allows you to get information from columns
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contained in two or more tables in the same database by using a join operation.
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If the SELECT statement is successful, the result is one or more rows of the
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specified tables. The data values in the columns of the rows returned represent
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a composite of the data values contained in specified tables.</p>
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<p>Using
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an Interactive SQL query, the results of a query can be placed in a database
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file on the local server. If a commitment control level is specified for the
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Interactive SQL process, it applies to the application server (AS); the database
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file on the local server is under a commitment control level of *NONE.</p>
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<p>Interactive
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SQL allows you to do the following things: </p>
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<ul><li>Create a new file for the results of a select.</li>
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<li>Replace an existing file.</li>
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<li>Create a new member in a file.</li>
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<li>Replace a member.</li>
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<li>Append the results to an existing member.</li>
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</ul>
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<p>Consider the situation in which the KC105 dealership is transferring
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its entire stock of part number 1234567 to KC110. KC110 queries the KC105
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database for the part they acquire from KC105. The result of this inventory
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query is returned to a database file that already exists on the KC110 server.
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This is the process you can use to complete this task:</p>
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<p>Use the <span class="cmdname">Start
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SQL (STRSQL)</span> command to get the Interactive SQL display. Before
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you enter any SQL statement (other than a CONNECT) for the new database, specify
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that the results of this operation are sent to a database file on the local
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server by doing the following steps: </p>
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</div>
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<ol><li class="stepexpand"><span>Select the Services option from the Enter SQL Statements
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display.</span></li>
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<li class="stepexpand"><span>Select the Change Session Attributes option from the Services display.</span></li>
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<li class="stepexpand"><span>Enter the Select Output Device option from the Session Attributes
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Display.</span></li>
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<li class="stepexpand"><span>Type a 3 for a database file in the Output device field and press
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Enter. The following display is shown: </span> <pre class="screen">Change File
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Type choices, press Enter.
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File . . . . . . . . . QSQLSELECT Name
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Library . . . . . . QGPL Name
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Member . . . . . . . . *FILE Name, *FILE, *FIRST
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Option . . . . . . . . 1 1=Create new file
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2=Replace file
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3=Create new member
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4=Replace member
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5=Add to member
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For a new file:
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Authority . . . . . *LIBCRTAUT *LIBCRTAUT, *CHANGE, *ALL
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*EXCLUDE, *USE
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authorization list name
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Text . . . . . . . .
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F3=Exit F5=Refresh F12=Cancel
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</pre>
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</li>
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<li class="stepexpand"><span>Specify the name of the database file that is to receive the results.</span></li>
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</ol>
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<div class="section"> <p>When the database name is specified, you can begin your Interactive
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SQL processing as shown in the following example. </p>
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<pre class="screen">Enter SQL Statements
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Type SQL statement, press Enter.
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Current connection is to relational database KC000.
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CONNECT TO KC105__________________________________________________________
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Current connection is to relational database KC105.
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====> SELECT * FROM INVENTORY_____________________________________________
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WHERE PART = '1234567'____________________________________________________
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__________________________________________________________________________
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__________________________________________________________________________
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__________________________________________________________________________
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__________________________________________________________________________
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__________________________________________________________________________
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__________________________________________________________________________
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__________________________________________________________________________
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__________________________________________________________________________
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__________________________________________________________________________
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__________________________________________________________________________
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__________________________________________________________________________
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__________________________________________________________________________
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Bottom
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F3=Exit F4=Prompt F6=Insert line F9=Retrieve F10=Copy line
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F12=Cancel F13=Services F24=More keys
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</pre>
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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="rbal1mvdat.htm" title="A number of situations occur in enterprise operations that might require moving data from one iSeries server to another.">Move data from one iSeries server to another</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="../sqlp/rbafykickoff.htm">SQL programming</a></div>
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</div>
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<div class="relref"><strong>Related reference</strong><br />
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<div><a href="../db2/rbafzmst02.htm">SQL reference</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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