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POAdded a FK to my customer table from Bill table, can not add data to fk column
 

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  1. POAdded a FK to my customer table from Bill table, can not add data to fk column
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    <p><a href="https://stackoverflow.com/questions/9046879/foreign-key-not-populating-with-primary-key-values">Foreign Key Not Populating with Primary Key Values</a></p> <p>I did a lot of searching on the site, but I am relatively new to writing code for a database. I read a few threads like the one listed above, but I was unable to utilize the information within to solve my problem. I have two tables, customer and billing. The customer table is below:</p> <pre><code>SQL&gt; SELECT * FROM CUSTOMER; CUST_ID NAME BILL_NUM -------------------- ------------------- ---------- 432 MICHAEL MAYS 433 VILMA PACULAN 434 RUBY PUKE 435 ROWENA JOHNSON 436 MAGIC JOHNSON 437 DARTH VADER 438 OBI WAN 439 YODA 440 STEWIE GRIFFIN 441 EVIL MONKEY 442 HARRY POTTER </code></pre> <p>Bill table:</p> <pre><code>SQL&gt; SELECT * FROM BILL 2 ; BILL_NUM TOTAL ---------- ---------- 1000 5.5 1001 7.4 1002 12.5 1003 14.56 1004 25.36 1005 66.66 1006 99.97 1007 56.67 1008 5.23 1009 87.25 1010 36.17 </code></pre> <p>As you can see in the customer table the FK Bill_Num is null. I need to know how to insert the data into the column, to match the PK data? I am using oracle 10g SQLPlus. Any help would be greatly appreciated!</p>
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    1. USHempKnight
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      1. POAdded a FK to my customer table from Bill table, can not add data to fk column
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      1. POAdded a FK to my customer table from Bill table, can not add data to fk column
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    1. COHow are the tables `Customer` and `Bill` linked?? How do you know **which** bills belong to Customer No. 442 - Harry Potter ??
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    2. COIs this not the wrong way around? CUST_ID should be in the BILL table, not BILL_NUM in CUSTOMER. Normally a bill belongs to a single customer and a customer can have many bills.
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      1. POAdded a FK to my customer table from Bill table, can not add data to fk column
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    3. COIt doesn't look like you can. As you haven't linked them previously you'll have to do it manually...
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      1. USBen
 

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