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thinkasanythinkasany
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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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‎solution/1400-1499/1435.Create a Session Bar Chart/README.md

+4-44
Original file line numberDiff line numberDiff line change
@@ -70,53 +70,13 @@ Sessions 表：
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### **SQL**
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```sql
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(
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SELECT
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'[0-5>' AS bin,
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SUM(
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CASE
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WHEN duration / 60 < 5 THEN 1
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ELSE 0
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END
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) AS total
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FROM Sessions
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)
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SELECT '[0-5>' AS bin, count(1) AS total FROM Sessions WHERE duration < 300
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UNION
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(
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SELECT
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'[5-10>' AS bin,
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SUM(
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CASE
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WHEN (duration / 60 >= 5 AND duration / 60 < 10) THEN 1
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ELSE 0
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END
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) AS total
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FROM Sessions
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)
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SELECT '[5-10>' AS bin, count(1) AS total FROM Sessions WHERE 300 <= duration AND duration < 600
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UNION
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(
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SELECT
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'[10-15>' AS bin,
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SUM(
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CASE
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WHEN (duration / 60 >= 10 AND duration / 60 < 15) THEN 1
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ELSE 0
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END
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) AS total
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FROM Sessions
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)
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SELECT '[10-15>' AS bin, count(1) AS total FROM Sessions WHERE 600 <= duration AND duration < 900
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UNION
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(
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SELECT
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'15 or more' AS bin,
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SUM(
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CASE
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WHEN duration / 60 >= 15 THEN 1
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ELSE 0
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END
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) AS total
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FROM Sessions
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);
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SELECT '15 or more' AS bin, count(1) AS total FROM Sessions WHERE 900 <= duration;
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```
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<!-- tabs:end -->

‎solution/1400-1499/1435.Create a Session Bar Chart/README_EN.md

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@@ -65,53 +65,13 @@ For session_id 5 has a duration greater than or equal to 15 minutes.
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### **SQL**
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```sql
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(
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SELECT
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'[0-5>' AS bin,
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SUM(
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CASE
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WHEN duration / 60 < 5 THEN 1
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ELSE 0
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END
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) AS total
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FROM Sessions
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)
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SELECT '[0-5>' AS bin, count(1) AS total FROM Sessions WHERE duration < 300
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UNION
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(
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SELECT
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'[5-10>' AS bin,
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SUM(
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CASE
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WHEN (duration / 60 >= 5 AND duration / 60 < 10) THEN 1
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ELSE 0
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END
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) AS total
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FROM Sessions
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)
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SELECT '[5-10>' AS bin, count(1) AS total FROM Sessions WHERE 300 <= duration AND duration < 600
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UNION
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(
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SELECT
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'[10-15>' AS bin,
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SUM(
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CASE
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WHEN (duration / 60 >= 10 AND duration / 60 < 15) THEN 1
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ELSE 0
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END
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) AS total
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FROM Sessions
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)
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SELECT '[10-15>' AS bin, count(1) AS total FROM Sessions WHERE 600 <= duration AND duration < 900
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UNION
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(
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SELECT
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'15 or more' AS bin,
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SUM(
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CASE
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WHEN duration / 60 >= 15 THEN 1
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ELSE 0
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END
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) AS total
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FROM Sessions
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);
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SELECT '15 or more' AS bin, count(1) AS total FROM Sessions WHERE 900 <= duration;
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```
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<!-- tabs:end -->

‎solution/1400-1499/1435.Create a Session Bar Chart/Solution.sql

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@@ -1,47 +1,7 @@
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(
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SELECT
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'[0-5>' AS bin,
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SUM(
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CASE
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WHEN duration / 60 < 5 THEN 1
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ELSE 0
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END
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) AS total
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FROM Sessions
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)
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SELECT '[0-5>' AS bin, count(1) AS total FROM Sessions WHERE duration < 300
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UNION
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(
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SELECT
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'[5-10>' AS bin,
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SUM(
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CASE
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WHEN (duration / 60 >= 5 AND duration / 60 < 10) THEN 1
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ELSE 0
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END
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) AS total
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FROM Sessions
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)
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SELECT '[5-10>' AS bin, count(1) AS total FROM Sessions WHERE 300 <= duration AND duration < 600
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UNION
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(
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SELECT
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'[10-15>' AS bin,
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SUM(
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CASE
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WHEN (duration / 60 >= 10 AND duration / 60 < 15) THEN 1
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ELSE 0
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END
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) AS total
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FROM Sessions
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)
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SELECT '[10-15>' AS bin, count(1) AS total FROM Sessions WHERE 600 <= duration AND duration < 900
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UNION
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(
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SELECT
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'15 or more' AS bin,
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SUM(
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CASE
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WHEN duration / 60 >= 15 THEN 1
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ELSE 0
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END
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) AS total
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FROM Sessions
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);
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SELECT '15 or more' AS bin, count(1) AS total FROM Sessions WHERE 900 <= duration;

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