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feat: update sql solution to lc problem: No.1435 (doocs#1824)

* feat: update sql solution to lc problem: No.1435 * fix: bin

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+12

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Lines changed: 4 additions & 44 deletions

Original file line number	Diff line number	Diff line change
`@@ -70,53 +70,13 @@ Sessions 表:`
`70`	`70`	`### SQL`
`71`	`71`
`72`	`72`	```sql
`73`		`-(`
`74`		`- SELECT`
`75`		`- '[0-5>' AS bin,`
`76`		`- SUM(`
`77`		`- CASE`
`78`		`- WHEN duration / 60 < 5 THEN 1`
`79`		`- ELSE 0`
`80`		`- END`
`81`		`- ) AS total`
`82`		`- FROM Sessions`
`83`		`-)`
	`73`	`+SELECT '[0-5>' AS bin, count(1) AS total FROM Sessions WHERE duration < 300`
`84`	`74`	`UNION`
`85`		`-(`
`86`		`- SELECT`
`87`		`- '[5-10>' AS bin,`
`88`		`- SUM(`
`89`		`- CASE`
`90`		`- WHEN (duration / 60 >= 5 AND duration / 60 < 10) THEN 1`
`91`		`- ELSE 0`
`92`		`- END`
`93`		`- ) AS total`
`94`		`- FROM Sessions`
`95`		`-)`
	`75`	`+SELECT '[5-10>' AS bin, count(1) AS total FROM Sessions WHERE 300 <= duration AND duration < 600`
`96`	`76`	`UNION`
`97`		`-(`
`98`		`- SELECT`
`99`		`- '[10-15>' AS bin,`
`100`		`- SUM(`
`101`		`- CASE`
`102`		`- WHEN (duration / 60 >= 10 AND duration / 60 < 15) THEN 1`
`103`		`- ELSE 0`
`104`		`- END`
`105`		`- ) AS total`
`106`		`- FROM Sessions`
`107`		`-)`
	`77`	`+SELECT '[10-15>' AS bin, count(1) AS total FROM Sessions WHERE 600 <= duration AND duration < 900`
`108`	`78`	`UNION`
`109`		`-(`
`110`		`- SELECT`
`111`		`- '15 or more' AS bin,`
`112`		`- SUM(`
`113`		`- CASE`
`114`		`- WHEN duration / 60 >= 15 THEN 1`
`115`		`- ELSE 0`
`116`		`- END`
`117`		`- ) AS total`
`118`		`- FROM Sessions`
`119`		`-);`
	`79`	`+SELECT '15 or more' AS bin, count(1) AS total FROM Sessions WHERE 900 <= duration;`
`120`	`80`	```
`121`	`81`
`122`	`82`	`<!-- tabs:end -->`

Lines changed: 4 additions & 44 deletions

Original file line number	Diff line number	Diff line change
`@@ -65,53 +65,13 @@ For session_id 5 has a duration greater than or equal to 15 minutes.`
`65`	`65`	`### SQL`
`66`	`66`
`67`	`67`	```sql
`68`		`-(`
`69`		`- SELECT`
`70`		`- '[0-5>' AS bin,`
`71`		`- SUM(`
`72`		`- CASE`
`73`		`- WHEN duration / 60 < 5 THEN 1`
`74`		`- ELSE 0`
`75`		`- END`
`76`		`- ) AS total`
`77`		`- FROM Sessions`
`78`		`-)`
	`68`	`+SELECT '[0-5>' AS bin, count(1) AS total FROM Sessions WHERE duration < 300`
`79`	`69`	`UNION`
`80`		`-(`
`81`		`- SELECT`
`82`		`- '[5-10>' AS bin,`
`83`		`- SUM(`
`84`		`- CASE`
`85`		`- WHEN (duration / 60 >= 5 AND duration / 60 < 10) THEN 1`
`86`		`- ELSE 0`
`87`		`- END`
`88`		`- ) AS total`
`89`		`- FROM Sessions`
`90`		`-)`
	`70`	`+SELECT '[5-10>' AS bin, count(1) AS total FROM Sessions WHERE 300 <= duration AND duration < 600`
`91`	`71`	`UNION`
`92`		`-(`
`93`		`- SELECT`
`94`		`- '[10-15>' AS bin,`
`95`		`- SUM(`
`96`		`- CASE`
`97`		`- WHEN (duration / 60 >= 10 AND duration / 60 < 15) THEN 1`
`98`		`- ELSE 0`
`99`		`- END`
`100`		`- ) AS total`
`101`		`- FROM Sessions`
`102`		`-)`
	`72`	`+SELECT '[10-15>' AS bin, count(1) AS total FROM Sessions WHERE 600 <= duration AND duration < 900`
`103`	`73`	`UNION`
`104`		`-(`
`105`		`- SELECT`
`106`		`- '15 or more' AS bin,`
`107`		`- SUM(`
`108`		`- CASE`
`109`		`- WHEN duration / 60 >= 15 THEN 1`
`110`		`- ELSE 0`
`111`		`- END`
`112`		`- ) AS total`
`113`		`- FROM Sessions`
`114`		`-);`
	`74`	`+SELECT '15 or more' AS bin, count(1) AS total FROM Sessions WHERE 900 <= duration;`
`115`	`75`	```
`116`	`76`
`117`	`77`	`<!-- tabs:end -->`

Lines changed: 4 additions & 44 deletions

Original file line number	Diff line number	Diff line change
`@@ -1,47 +1,7 @@`
`1`		`-(`
`2`		`- SELECT`
`3`		`- '[0-5>' AS bin,`
`4`		`- SUM(`
`5`		`- CASE`
`6`		`- WHEN duration / 60 < 5 THEN 1`
`7`		`- ELSE 0`
`8`		`- END`
`9`		`- ) AS total`
`10`		`- FROM Sessions`
`11`		`-)`
	`1`	`+SELECT '[0-5>' AS bin, count(1) AS total FROM Sessions WHERE duration < 300`
`12`	`2`	`UNION`
`13`		`-(`
`14`		`- SELECT`
`15`		`- '[5-10>' AS bin,`
`16`		`- SUM(`
`17`		`- CASE`
`18`		`- WHEN (duration / 60 >= 5 AND duration / 60 < 10) THEN 1`
`19`		`- ELSE 0`
`20`		`- END`
`21`		`- ) AS total`
`22`		`- FROM Sessions`
`23`		`-)`
	`3`	`+SELECT '[5-10>' AS bin, count(1) AS total FROM Sessions WHERE 300 <= duration AND duration < 600`
`24`	`4`	`UNION`
`25`		`-(`
`26`		`- SELECT`
`27`		`- '[10-15>' AS bin,`
`28`		`- SUM(`
`29`		`- CASE`
`30`		`- WHEN (duration / 60 >= 10 AND duration / 60 < 15) THEN 1`
`31`		`- ELSE 0`
`32`		`- END`
`33`		`- ) AS total`
`34`		`- FROM Sessions`
`35`		`-)`
	`5`	`+SELECT '[10-15>' AS bin, count(1) AS total FROM Sessions WHERE 600 <= duration AND duration < 900`
`36`	`6`	`UNION`
`37`		`-(`
`38`		`- SELECT`
`39`		`- '15 or more' AS bin,`
`40`		`- SUM(`
`41`		`- CASE`
`42`		`- WHEN duration / 60 >= 15 THEN 1`
`43`		`- ELSE 0`
`44`		`- END`
`45`		`- ) AS total`
`46`		`- FROM Sessions`
`47`		`-);`
	`7`	`+SELECT '15 or more' AS bin, count(1) AS total FROM Sessions WHERE 900 <= duration;`

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