|
| 1 | + |
| 2 | + |
| 3 | +-- PURCHASEORDERS - JSON collection table |
| 4 | +-- PURCHASEORDER_CV, PURCHASEORDER_TOT_PRC_CV, PURCHASEORDER_AVG_PRC_CV - JSON collection views |
| 5 | + |
| 6 | + |
| 7 | +--------------------------------------------------------------------------------- |
| 8 | +---------------------------- JSON RELATIONAL VIEW ------------------------------- |
| 9 | +--------------------------------------------------------------------------------- |
| 10 | +CREATE or REPLACE VIEW PURCHASEORDER_V AS |
| 11 | + SELECT ponumber, requestor, special, address |
| 12 | + FROM PURCHASEORDERS, |
| 13 | + json_table (DATA, '$' |
| 14 | + COLUMNS (ponumber number PATH '$.PONumber', |
| 15 | + requestor varchar2(32) PATH '$.Requestor', |
| 16 | + special varchar2(10) PATH '$."Special Instructions"', |
| 17 | + address JSON PATH '$.ShippingInstructions.Address')) jt |
| 18 | +; |
| 19 | + |
| 20 | + |
| 21 | +DESC PURCHASEORDER_V |
| 22 | +/* |
| 23 | +Name Null? Type |
| 24 | +
|
| 25 | +--------- ----- ------------ |
| 26 | +PONUMBER NUMBER |
| 27 | +REQUESTOR VARCHAR2(32) |
| 28 | +SPECIAL VARCHAR2(10) |
| 29 | +ADDRESS JSON |
| 30 | +*/ |
| 31 | + |
| 32 | +SELECT * FROM PURCHASEORDER_V ORDER BY PONUMBER; |
| 33 | +/* |
| 34 | + PONUMBER REQUESTOR SPECIAL ADDRESS |
| 35 | +___________ _________________ __________ _______________________________________________________________________________________________________________________________________ |
| 36 | + 1 Martha Sullivan {"street":"200 Sporting Green","city":"South San Francisco","state":"CA","zipCode":99236,"country":"United States of America"} |
| 37 | + 2 Martha Sullivan {"street":"200 Sporting Green","city":"South San Francisco","state":"CA","zipCode":99236,"country":"United States of America"} |
| 38 | + ............................................................................................................................... |
| 39 | + |
| 40 | + */ |
| 41 | + |
| 42 | +SELECT po_v.ponumber, po_v.REQUESTOR , po_v.SPECIAL, po_v.address.city FROM |
| 43 | +PURCHASEORDER_V po_v WHERE ponumber =7; |
| 44 | +/* |
| 45 | + PONUMBER REQUESTOR SPECIAL CITY |
| 46 | +___________ ______________ _____________ ________________________ |
| 47 | + 7 Vance Jones Hand Carry "South San Francisco" */ |
| 48 | + |
| 49 | +-- using a CTE (Common Table Expression) |
| 50 | +WITH po_cte AS |
| 51 | + (SELECT ponumber, requestor, special, address |
| 52 | + FROM PURCHASEORDERS, |
| 53 | + JSON_TABLE (DATA, '$' |
| 54 | + COLUMNS (ponumber number PATH '$.PONumber', |
| 55 | + requestor varchar2(32) PATH '$.Requestor', |
| 56 | + special varchar2(32) PATH '$."Special Instructions"', |
| 57 | + address JSON PATH '$.ShippingInstructions.Address')) jt |
| 58 | + ) |
| 59 | +SELECT ponumber, requestor, special, address FROM po_cte; |
| 60 | + |
| 61 | +--------------------------------------------------------------------------------- |
| 62 | +---------------------------- JSON COLLECTION VIEW ------------------------------- |
| 63 | +--------------------------------------------------------------------------------- |
| 64 | + |
| 65 | + |
| 66 | +-- JSON collection view with nested path |
| 67 | +CREATE OR REPLACE JSON COLLECTION VIEW PURCHASEORDER_CV AS |
| 68 | + SELECT JSON {ponumber, requestor, special, itemnumber,itemdesc,unitprice, upccode, quantity} |
| 69 | + FROM PURCHASEORDERS, |
| 70 | + JSON_TABLE (DATA, '$' |
| 71 | + COLUMNS (ponumber number PATH '$.PONumber', |
| 72 | + requestor varchar2(32) PATH '$.Requestor', |
| 73 | + special varchar2(30) PATH '$."Special Instructions"', |
| 74 | + NESTED PATH '$.LineItems[*]' |
| 75 | + COLUMNS |
| 76 | + ( itemnumber number PATH '$.ItemNumber', |
| 77 | + quantity number PATH '$.Quantity', |
| 78 | + NESTED PATH '$.Part[*]' |
| 79 | + COLUMNS ( |
| 80 | + itemdesc varchar2(50) PATH '$.Description', |
| 81 | + upccode number PATH '$.UPCCode', |
| 82 | + unitprice number PATH '$.UnitPrice') |
| 83 | + ) |
| 84 | + )) |
| 85 | + ; |
| 86 | + |
| 87 | + |
| 88 | +SELECT po.DATA.requestor |
| 89 | + ,po.DATA.ponumber |
| 90 | + ,po.DATA.itemnumber |
| 91 | + ,po.DATA.itemdesc |
| 92 | + ,po.DATA.unitprice |
| 93 | + ,po.DATA.quantity |
| 94 | + FROM PURCHASEORDER_CV po |
| 95 | +WHERE po.DATA.ponumber=25 |
| 96 | +; |
| 97 | +/* |
| 98 | +REQUESTOR PONUMBER ITEMNUMBER ITEMDESC UNITPRICE QUANTITY |
| 99 | +__________________ ___________ _____________ _________________________________________ ____________ ___________ |
| 100 | +"Timothy Gates" 25 1 "The Land Before Time: The Big Freeze" 27.95 2 |
| 101 | +"Timothy Gates" 25 2 "Winning" 19.95 1 |
| 102 | +"Timothy Gates" 25 3 "Falling Down" 19.95 5 |
| 103 | +*/ |
| 104 | +---------------------------------------------------------------------------------------------------------------- |
| 105 | +----------------JSON COLLECTION VIEW with AGGREGATE functions |
| 106 | +---------------------------------------------------------------------------------------------------------------- |
| 107 | + |
| 108 | +-- JSON collection view with SUM |
| 109 | +CREATE OR REPLACE JSON COLLECTION VIEW PURCHASEORDER_TOT_PRC_CV AS |
| 110 | + SELECT JSON {jt.ponumber, jt.requestor, jt.total_price} |
| 111 | + FROM ( |
| 112 | + SELECT ROUND (SUM(unitprice * quantity),2) total_price |
| 113 | + , ponumber |
| 114 | + , requestor |
| 115 | + FROM PURCHASEORDERS, |
| 116 | + JSON_TABLE(DATA, '$' error on error null on empty |
| 117 | + COLUMNS (ponumber number PATH '$.PONumber', |
| 118 | + requestor varchar2(32) PATH '$.Requestor', |
| 119 | + special varchar2(30) PATH '$."Special Instructions"', |
| 120 | + NESTED PATH '$.LineItems[*]' |
| 121 | + COLUMNS |
| 122 | + ( itemnumber number PATH '$.ItemNumber', |
| 123 | + quantity number PATH '$.Quantity', |
| 124 | + NESTED PATH '$.Part[*]' |
| 125 | + COLUMNS ( |
| 126 | + itemdesc CLOB PATH '$.Description', |
| 127 | + upccode number PATH '$.UPCCode', |
| 128 | + unitprice number PATH '$.UnitPrice') |
| 129 | + ) |
| 130 | + )) |
| 131 | + GROUP BY requestor, ponumber |
| 132 | + )jt |
| 133 | +; |
| 134 | + |
| 135 | +SELECT po.DATA.ponumber, po.DATA.requestor,po.DATA.total_price |
| 136 | + FROM PURCHASEORDER_TOT_PRC_CV po |
| 137 | + WHERE po.DATA.ponumber=25; |
| 138 | + |
| 139 | + /* |
| 140 | +PONUMBER REQUESTOR TOTAL_PRICE |
| 141 | +___________ __________________ ______________ |
| 142 | +25 "Timothy Gates" 175.6 |
| 143 | +
|
| 144 | + */ |
| 145 | + |
| 146 | +--------------------------------------------------------------------------------- |
| 147 | +----------------JSON COLLECTION VIEWS with WINDOW function ---------------------- |
| 148 | +--------------------------------------------------------------------------------- |
| 149 | +-- Avgeare of Total items price |
| 150 | + |
| 151 | + |
| 152 | +CREATE OR REPLACE JSON COLLECTION VIEW PURCHASEORDER_AVG_PRC_CV AS |
| 153 | + SELECT JSON { |
| 154 | + jt.ponumber, |
| 155 | + jt.itemnumber, |
| 156 | + jt.itemdesc, |
| 157 | + jt.quantity, |
| 158 | + jt.unitprice, |
| 159 | + jt.total_item_price, |
| 160 | + jt.average_total_item_price} |
| 161 | + FROM ( |
| 162 | + SELECT |
| 163 | + ponumber, |
| 164 | + itemnumber, |
| 165 | + itemdesc, |
| 166 | + quantity, |
| 167 | + unitprice, |
| 168 | + ROUND (unitprice * quantity,2) total_item_price, |
| 169 | + ROUND (avg(unitprice * quantity) over (partition by ponumber),2) average_total_item_price |
| 170 | + FROM PURCHASEORDERS, |
| 171 | + JSON_TABLE(DATA, '$' error on error null on empty |
| 172 | + COLUMNS (ponumber number PATH '$.PONumber', |
| 173 | + requestor varchar2(32) PATH '$.Requestor', |
| 174 | + special varchar2(30) PATH '$."Special Instructions"', |
| 175 | + NESTED PATH '$.LineItems[*]' |
| 176 | + COLUMNS |
| 177 | + ( itemnumber number PATH '$.ItemNumber', |
| 178 | + quantity number PATH '$.Quantity', |
| 179 | + NESTED PATH '$.Part[*]' |
| 180 | + COLUMNS ( |
| 181 | + itemdesc CLOB PATH '$.Description', |
| 182 | + --itemdesc varchar2(100) PATH '$.Description', |
| 183 | + upccode number PATH '$.UPCCode', |
| 184 | + unitprice number PATH '$.UnitPrice') |
| 185 | + ) |
| 186 | + ) |
| 187 | + ) |
| 188 | + ) jt |
| 189 | +; |
| 190 | + |
| 191 | + |
| 192 | +SELECT po.DATA.ponumber, |
| 193 | + po.DATA.itemnumber, |
| 194 | + po.DATA.itemdesc, |
| 195 | + po.DATA.quantity, |
| 196 | + po.DATA.unitprice, |
| 197 | + po.DATA.total_item_price, |
| 198 | + po.DATA.average_total_item_price |
| 199 | + FROM PURCHASEORDER_AVG_PRC_CV po |
| 200 | + WHERE po.DATA.ponumber=25 |
| 201 | +; |
| 202 | + |
| 203 | +/* |
| 204 | +
|
| 205 | +PONUMBER ITEMNUMBER ITEMDESC QUANTITY UNITPRICE TOTAL_ITEM_PRICE AVERAGE_TOTAL_ITEM_PRICE |
| 206 | +___________ _____________ _________________________________________ ___________ ____________ ___________________ ________________________ |
| 207 | +25 1 "The Land Before Time: The Big Freeze" 2 27.95 55.9 58.53 |
| 208 | +25 2 "Winning" 1 19.95 19.95 58.53 |
| 209 | +25 3 "Falling Down" 5 19.95 99.75 58.53 |
| 210 | +*/ |
| 211 | + |
| 212 | + |
| 213 | + |
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