to a table Why are SQL SELECT query clauses not processed in the same order

To a table why are sql select query clauses not

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to a table Why are SQL SELECT query clauses not processed in the same order that they are typed? Use only the SQL Statements on page 5 of the exam to answer either of the next 2 questions. NOT using SQL terms , what are lines 20 and 21 supposed to do? Why won’t they work in this database? Write a SQL query with proper syntax to retrieve only the names of care centers with IDs greater than 30. 2 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102
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When would you use a SQL outer join? What would it do? Join : a relational operation that causes two or more tables with a common domain to be combined into a single table or view Types of joins: Equi -join: » a join in which the joining condition is based on equality between values in the common columns; common columns appear redundantly in the result Natural join: » an equi-join where 1 of the duplicate columns is eliminated in the result Outer join: » a join in which rows that do not have matching values in common columns but included in the result table, , this will include customer rows with no matching order rows (as opposed to inner join, in which rows must have matching values in order to appear in the result) Union join: » includes all columns from each table in the join, and an instance for each row of each table What does the SQL COMMIT command do? BEGIN TRANSACTION/END TRANSACTION » Marks boundaries of a transaction COMMIT » Makes all updates permanent ROLLBACK » Cancels updates since the last COMMIT Use only the SQL Statements on page 5 of the exam to answer either of the next 2 questions. Using your own words and NOT SQL syntax, what does line 43 ensure will happen? Write a proper SQL join query to retrieve all bed numbers for the care center with the name “Gerontology”. 3 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153
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4 154
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The definition of data warehouse includes the term “integrated”; what does this mean? Be complete.
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