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1 | 1 | <div style="font-size: 1em;"> |
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3 | | -Last updated on 2021-12-08 21:50:22 |
| 3 | +Last updated on 2021-12-08 22:02:40 |
4 | 4 |
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5 | 5 | </div> |
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@@ -51,103 +51,18 @@ code and show it running on their machine. |
51 | 51 |
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52 | 52 | ## 1.2 MULTI-PART SQL EXERCISE: LIVE WALK-THROUGH |
53 | 53 |
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54 | | -Depicted here are four tables from a relational database conceptual data |
55 | | -model. |
56 | | - |
57 | | -<div style='float: left; margin: 0 1em 0 1em;'> |
58 | | - |
59 | | -<table class="table table-bordered table-striped table-hover table-condensed table-responsive" style="width: auto !important; margin-left: auto; margin-right: auto;"> |
60 | | - <thead> |
61 | | - <tr> |
62 | | - <th style="text-align:left;color: white !important;background-color: gray !important;font-size: 20px;"> Company </th> |
63 | | - </tr> |
64 | | - </thead> |
65 | | -<tbody> |
66 | | - <tr> |
67 | | - <td style="text-align:left;width: 15em; "> guid </td> |
68 | | - </tr> |
69 | | - <tr> |
70 | | - <td style="text-align:left;width: 15em; "> name </td> |
71 | | - </tr> |
72 | | - <tr> |
73 | | - <td style="text-align:left;width: 15em; "> status </td> |
74 | | - </tr> |
75 | | -</tbody> |
76 | | -</table> |
| 54 | +The following figure shows an *entity relationship diagram* (ERD) for a |
| 55 | +conceptual data model containing 4 tables. |
77 | 56 |
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78 | | -</div> |
79 | | - |
80 | | -<div style='float: left; margin: 0 1em 0 1em;'> |
81 | | - |
82 | | -<table class="table table-bordered table-striped table-hover table-condensed table-responsive" style="width: auto !important; margin-left: auto; margin-right: auto;"> |
83 | | - <thead> |
84 | | - <tr> |
85 | | - <th style="text-align:left;color: white !important;background-color: gray !important;font-size: 20px;"> Position </th> |
86 | | - </tr> |
87 | | - </thead> |
88 | | -<tbody> |
89 | | - <tr> |
90 | | - <td style="text-align:left;width: 15em; "> guid </td> |
91 | | - </tr> |
92 | | - <tr> |
93 | | - <td style="text-align:left;width: 15em; "> name </td> |
94 | | - </tr> |
95 | | - <tr> |
96 | | - <td style="text-align:left;width: 15em; "> status </td> |
97 | | - </tr> |
98 | | -</tbody> |
99 | | -</table> |
100 | | - |
101 | | -</div> |
| 57 | +1. Company |
102 | 58 |
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103 | | -<div style='float: left; margin-right: 1em;'> |
104 | | - |
105 | | -<table class="table table-bordered table-striped table-hover table-condensed table-responsive" style="width: auto !important; margin-left: auto; margin-right: auto;"> |
106 | | - <thead> |
107 | | - <tr> |
108 | | - <th style="text-align:left;color: white !important;background-color: gray !important;font-size: 20px;"> Employee </th> |
109 | | - </tr> |
110 | | - </thead> |
111 | | -<tbody> |
112 | | - <tr> |
113 | | - <td style="text-align:left;width: 15em; "> guid </td> |
114 | | - </tr> |
115 | | - <tr> |
116 | | - <td style="text-align:left;width: 15em; "> state </td> |
117 | | - </tr> |
118 | | - <tr> |
119 | | - <td style="text-align:left;width: 15em; "> status </td> |
120 | | - </tr> |
121 | | -</tbody> |
122 | | -</table> |
| 59 | +2. Position |
123 | 60 |
|
124 | | -</div> |
| 61 | +3. Employee |
125 | 62 |
|
126 | | -<div style='float: left; margin: 0 1em 0 1em;'> |
127 | | - |
128 | | -<table class="table table-bordered table-striped table-hover table-condensed table-responsive" style="width: auto !important; margin-left: auto; margin-right: auto;"> |
129 | | - <thead> |
130 | | - <tr> |
131 | | - <th style="text-align:left;color: white !important;background-color: gray !important;font-size: 20px;"> Job </th> |
132 | | - </tr> |
133 | | - </thead> |
134 | | -<tbody> |
135 | | - <tr> |
136 | | - <td style="text-align:left;width: 15em; "> guid </td> |
137 | | - </tr> |
138 | | - <tr> |
139 | | - <td style="text-align:left;width: 15em; "> company_guid </td> |
140 | | - </tr> |
141 | | - <tr> |
142 | | - <td style="text-align:left;width: 15em; "> position_guid </td> |
143 | | - </tr> |
144 | | - <tr> |
145 | | - <td style="text-align:left;width: 15em; "> employee_guid </td> |
146 | | - </tr> |
147 | | -</tbody> |
148 | | -</table> |
| 63 | +4. Job |
149 | 64 |
|
150 | | -</div> |
| 65 | + |
151 | 66 |
|
152 | 67 | <div style="clear: both;"> |
153 | 68 |
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