SQL Book page index with auto overwrite
0
I want to achieve something like a Book pages.
e.g:
I have a book with 100 pages, each of page has unique priority/page number, (1-100).
+-----+--------------------------------+------+
| id | content | page |
+-----+--------------------------------+------+
| 1 | cover | 1 |
| 2 | prelude | 2 |
| ... | ... | ... |
| 50 | and so he do rig a jig jig... | 50 |
| 51 | and he come to the bus stop... | 51 |
| ... | ... | ... |
| 100 | back-cover | 100 |
+-----+--------------------------------+------+
Let's imagine I insert a new page, but between page 50 and 51. So the inserted page priority/page number is 51.
And so, overwrite the upper page number, the "OLD" page 51-100 would be 52-101.
+-----+--------------------------------+------+
| id | content | page |
+-----+--------------------------------+------+
| 1 | cover | 1 |
| 2 | prelude | 2 |
| ... | ... | ... |
| 50 | and so he do rig a jig jig... | 50 |
| 101 | this is a new page | 51 |
| 51 | and he come to the bus stop... | 52 |
| ... | ... | ... |
| 100 | back-cover | 101 |
+-----+--------------------------------+------+
I'm using PostgreSQL, TypeORM, TypeScript.
sql postgresql typescript typeorm
asked Nov 20 '18 at 15:14
Fransisco WijayaFransisco Wijaya
65110
add a comment |
0
I want to achieve something like a Book pages.
e.g:
I have a book with 100 pages, each of page has unique priority/page number, (1-100).
+-----+--------------------------------+------+
| id | content | page |
+-----+--------------------------------+------+
| 1 | cover | 1 |
| 2 | prelude | 2 |
| ... | ... | ... |
| 50 | and so he do rig a jig jig... | 50 |
| 51 | and he come to the bus stop... | 51 |
| ... | ... | ... |
| 100 | back-cover | 100 |
+-----+--------------------------------+------+
Let's imagine I insert a new page, but between page 50 and 51. So the inserted page priority/page number is 51.
And so, overwrite the upper page number, the "OLD" page 51-100 would be 52-101.
+-----+--------------------------------+------+
| id | content | page |
+-----+--------------------------------+------+
| 1 | cover | 1 |
| 2 | prelude | 2 |
| ... | ... | ... |
| 50 | and so he do rig a jig jig... | 50 |
| 101 | this is a new page | 51 |
| 51 | and he come to the bus stop... | 52 |
| ... | ... | ... |
| 100 | back-cover | 101 |
+-----+--------------------------------+------+
I'm using PostgreSQL, TypeORM, TypeScript.
sql postgresql typescript typeorm
asked Nov 20 '18 at 15:14
Fransisco WijayaFransisco Wijaya
65110
add a comment |
0
0
0
I want to achieve something like a Book pages.
e.g:
I have a book with 100 pages, each of page has unique priority/page number, (1-100).
+-----+--------------------------------+------+
| id | content | page |
+-----+--------------------------------+------+
| 1 | cover | 1 |
| 2 | prelude | 2 |
| ... | ... | ... |
| 50 | and so he do rig a jig jig... | 50 |
| 51 | and he come to the bus stop... | 51 |
| ... | ... | ... |
| 100 | back-cover | 100 |
+-----+--------------------------------+------+
Let's imagine I insert a new page, but between page 50 and 51. So the inserted page priority/page number is 51.
And so, overwrite the upper page number, the "OLD" page 51-100 would be 52-101.
+-----+--------------------------------+------+
| id | content | page |
+-----+--------------------------------+------+
| 1 | cover | 1 |
| 2 | prelude | 2 |
| ... | ... | ... |
| 50 | and so he do rig a jig jig... | 50 |
| 101 | this is a new page | 51 |
| 51 | and he come to the bus stop... | 52 |
| ... | ... | ... |
| 100 | back-cover | 101 |
+-----+--------------------------------+------+
I'm using PostgreSQL, TypeORM, TypeScript.
sql postgresql typescript typeorm
asked Nov 20 '18 at 15:14
Fransisco WijayaFransisco Wijaya
65110
I want to achieve something like a Book pages.
e.g:
I have a book with 100 pages, each of page has unique priority/page number, (1-100).
+-----+--------------------------------+------+
| id | content | page |
+-----+--------------------------------+------+
| 1 | cover | 1 |
| 2 | prelude | 2 |
| ... | ... | ... |
| 50 | and so he do rig a jig jig... | 50 |
| 51 | and he come to the bus stop... | 51 |
| ... | ... | ... |
| 100 | back-cover | 100 |
+-----+--------------------------------+------+
Let's imagine I insert a new page, but between page 50 and 51. So the inserted page priority/page number is 51.
And so, overwrite the upper page number, the "OLD" page 51-100 would be 52-101.
+-----+--------------------------------+------+
| id | content | page |
+-----+--------------------------------+------+
| 1 | cover | 1 |
| 2 | prelude | 2 |
| ... | ... | ... |
| 50 | and so he do rig a jig jig... | 50 |
| 101 | this is a new page | 51 |
| 51 | and he come to the bus stop... | 52 |
| ... | ... | ... |
| 100 | back-cover | 101 |
+-----+--------------------------------+------+
I'm using PostgreSQL, TypeORM, TypeScript.
sql postgresql typescript typeorm
sql postgresql typescript typeorm
asked Nov 20 '18 at 15:14
Fransisco WijayaFransisco Wijaya
65110
asked Nov 20 '18 at 15:14
Fransisco WijayaFransisco Wijaya
65110
asked Nov 20 '18 at 15:14
Fransisco WijayaFransisco Wijaya
65110
asked Nov 20 '18 at 15:14
Fransisco WijayaFransisco Wijaya
65110
asked Nov 20 '18 at 15:14
Fransisco WijayaFransisco Wijaya
65110
65110
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
1
--Updates the table and sets each page value to itself + 1
--Under conditions: the page number is the same as the inserted record but the
--content is different (the original record with that page number)
--Or the page number is greater than the page number of the inserted record
UPDATE Table
SET [page] = [page] + 1
WHERE ([page] >= insertedPageNumber AND content <> insertedPageContent) OR [page] > insertedPageNumber
answered Nov 20 '18 at 15:17
Ryan WilsonRyan Wilson
3,9941619
I'll try later tomorrow, busy right now.
– Fransisco Wijaya
Nov 20 '18 at 15:52
@FransiscoWijaya Ok. have a good day.
– Ryan Wilson
Nov 20 '18 at 15:52
I got a trouble again... UPDATE page SET "pageNumber" = "pageNumber" + 1 WHERE ("pageNumber" >= 1) OR "pageNumber" > 1 Key ("pageNumber")=(2) already exists.
– Fransisco Wijaya
Nov 21 '18 at 7:06
I know because I set the col to unique Is it possible to do it with UNIQUE?
– Fransisco Wijaya
Nov 21 '18 at 10:35
@FransiscoWijaya If the page you are inserting is page 1, it should increment the current page 1 to page 2, then page 2 would go to page 3 and so on. I'm having trouble understanding what your issue is.
– Ryan Wilson
Nov 21 '18 at 13:17
|
show 5 more comments
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1 Answer
1
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oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
--Updates the table and sets each page value to itself + 1
--Under conditions: the page number is the same as the inserted record but the
--content is different (the original record with that page number)
--Or the page number is greater than the page number of the inserted record
UPDATE Table
SET [page] = [page] + 1
WHERE ([page] >= insertedPageNumber AND content <> insertedPageContent) OR [page] > insertedPageNumber
answered Nov 20 '18 at 15:17
Ryan WilsonRyan Wilson
3,9941619
I'll try later tomorrow, busy right now.
– Fransisco Wijaya
Nov 20 '18 at 15:52
@FransiscoWijaya Ok. have a good day.
– Ryan Wilson
Nov 20 '18 at 15:52
I got a trouble again... UPDATE page SET "pageNumber" = "pageNumber" + 1 WHERE ("pageNumber" >= 1) OR "pageNumber" > 1 Key ("pageNumber")=(2) already exists.
– Fransisco Wijaya
Nov 21 '18 at 7:06
I know because I set the col to unique Is it possible to do it with UNIQUE?
– Fransisco Wijaya
Nov 21 '18 at 10:35
@FransiscoWijaya If the page you are inserting is page 1, it should increment the current page 1 to page 2, then page 2 would go to page 3 and so on. I'm having trouble understanding what your issue is.
– Ryan Wilson
Nov 21 '18 at 13:17
|
show 5 more comments
1
--Updates the table and sets each page value to itself + 1
--Under conditions: the page number is the same as the inserted record but the
--content is different (the original record with that page number)
--Or the page number is greater than the page number of the inserted record
UPDATE Table
SET [page] = [page] + 1
WHERE ([page] >= insertedPageNumber AND content <> insertedPageContent) OR [page] > insertedPageNumber
answered Nov 20 '18 at 15:17
Ryan WilsonRyan Wilson
3,9941619
I'll try later tomorrow, busy right now.
– Fransisco Wijaya
Nov 20 '18 at 15:52
@FransiscoWijaya Ok. have a good day.
– Ryan Wilson
Nov 20 '18 at 15:52
I got a trouble again... UPDATE page SET "pageNumber" = "pageNumber" + 1 WHERE ("pageNumber" >= 1) OR "pageNumber" > 1 Key ("pageNumber")=(2) already exists.
– Fransisco Wijaya
Nov 21 '18 at 7:06
I know because I set the col to unique Is it possible to do it with UNIQUE?
– Fransisco Wijaya
Nov 21 '18 at 10:35
@FransiscoWijaya If the page you are inserting is page 1, it should increment the current page 1 to page 2, then page 2 would go to page 3 and so on. I'm having trouble understanding what your issue is.
– Ryan Wilson
Nov 21 '18 at 13:17
|
show 5 more comments
1
1
1
--Updates the table and sets each page value to itself + 1
--Under conditions: the page number is the same as the inserted record but the
--content is different (the original record with that page number)
--Or the page number is greater than the page number of the inserted record
UPDATE Table
SET [page] = [page] + 1
WHERE ([page] >= insertedPageNumber AND content <> insertedPageContent) OR [page] > insertedPageNumber
answered Nov 20 '18 at 15:17
Ryan WilsonRyan Wilson
3,9941619
--Updates the table and sets each page value to itself + 1
--Under conditions: the page number is the same as the inserted record but the
--content is different (the original record with that page number)
--Or the page number is greater than the page number of the inserted record
UPDATE Table
SET [page] = [page] + 1
WHERE ([page] >= insertedPageNumber AND content <> insertedPageContent) OR [page] > insertedPageNumber
answered Nov 20 '18 at 15:17
Ryan WilsonRyan Wilson
3,9941619
answered Nov 20 '18 at 15:17
Ryan WilsonRyan Wilson
3,9941619
answered Nov 20 '18 at 15:17
Ryan WilsonRyan Wilson
3,9941619
answered Nov 20 '18 at 15:17
Ryan WilsonRyan Wilson
3,9941619
3,9941619
I'll try later tomorrow, busy right now.
– Fransisco Wijaya
Nov 20 '18 at 15:52
@FransiscoWijaya Ok. have a good day.
– Ryan Wilson
Nov 20 '18 at 15:52
I got a trouble again... UPDATE page SET "pageNumber" = "pageNumber" + 1 WHERE ("pageNumber" >= 1) OR "pageNumber" > 1 Key ("pageNumber")=(2) already exists.
– Fransisco Wijaya
Nov 21 '18 at 7:06
I know because I set the col to unique Is it possible to do it with UNIQUE?
– Fransisco Wijaya
Nov 21 '18 at 10:35
@FransiscoWijaya If the page you are inserting is page 1, it should increment the current page 1 to page 2, then page 2 would go to page 3 and so on. I'm having trouble understanding what your issue is.
– Ryan Wilson
Nov 21 '18 at 13:17
|
show 5 more comments
I'll try later tomorrow, busy right now.
– Fransisco Wijaya
Nov 20 '18 at 15:52
@FransiscoWijaya Ok. have a good day.
– Ryan Wilson
Nov 20 '18 at 15:52
I got a trouble again... UPDATE page SET "pageNumber" = "pageNumber" + 1 WHERE ("pageNumber" >= 1) OR "pageNumber" > 1 Key ("pageNumber")=(2) already exists.
– Fransisco Wijaya
Nov 21 '18 at 7:06
I know because I set the col to unique Is it possible to do it with UNIQUE?
– Fransisco Wijaya
Nov 21 '18 at 10:35
@FransiscoWijaya If the page you are inserting is page 1, it should increment the current page 1 to page 2, then page 2 would go to page 3 and so on. I'm having trouble understanding what your issue is.
– Ryan Wilson
Nov 21 '18 at 13:17
I'll try later tomorrow, busy right now.
– Fransisco Wijaya
Nov 20 '18 at 15:52
I'll try later tomorrow, busy right now.
– Fransisco Wijaya
Nov 20 '18 at 15:52
@FransiscoWijaya Ok. have a good day.
– Ryan Wilson
Nov 20 '18 at 15:52
@FransiscoWijaya Ok. have a good day.
– Ryan Wilson
Nov 20 '18 at 15:52
I got a trouble again... UPDATE page SET "pageNumber" = "pageNumber" + 1 WHERE ("pageNumber" >= 1) OR "pageNumber" > 1 Key ("pageNumber")=(2) already exists.
– Fransisco Wijaya
Nov 21 '18 at 7:06
I got a trouble again... UPDATE page SET "pageNumber" = "pageNumber" + 1 WHERE ("pageNumber" >= 1) OR "pageNumber" > 1 Key ("pageNumber")=(2) already exists.
– Fransisco Wijaya
Nov 21 '18 at 7:06
I know because I set the col to unique Is it possible to do it with UNIQUE?
– Fransisco Wijaya
Nov 21 '18 at 10:35
I know because I set the col to unique Is it possible to do it with UNIQUE?
– Fransisco Wijaya
Nov 21 '18 at 10:35
@FransiscoWijaya If the page you are inserting is page 1, it should increment the current page 1 to page 2, then page 2 would go to page 3 and so on. I'm having trouble understanding what your issue is.
– Ryan Wilson
Nov 21 '18 at 13:17
@FransiscoWijaya If the page you are inserting is page 1, it should increment the current page 1 to page 2, then page 2 would go to page 3 and so on. I'm having trouble understanding what your issue is.
– Ryan Wilson
Nov 21 '18 at 13:17
|
show 5 more comments
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