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Commit 5598ce5

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feat: add sql solutions to lc problems (doocs#1215)
* No.1179.Reformat Department Table * No.1193.Monthly Transactions I * No.1204.Last Person to Fit in the Bus * No.1205.Monthly Transactions II * No.1205.Monthly Transactions II * No.2772.Apply Operations to Make All Array Elements Equal to Zero
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13 files changed

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‎solution/1100-1199/1179.Reformat Department Table/README.md‎

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@@ -124,7 +124,7 @@ SELECT
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END
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) AS Dec_Revenue
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FROM Department
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GROUP BY id;
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GROUP BY 1;
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```
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<!-- tabs:end -->

‎solution/1100-1199/1179.Reformat Department Table/README_EN.md‎

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@@ -125,7 +125,7 @@ SELECT
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END
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) AS Dec_Revenue
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FROM Department
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GROUP BY id;
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GROUP BY 1;
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```
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<!-- tabs:end -->

‎solution/1100-1199/1179.Reformat Department Table/Solution.sql‎

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@@ -62,4 +62,4 @@ SELECT
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END
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) AS Dec_Revenue
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FROM Department
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GROUP BY id;
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GROUP BY 1;

‎solution/1100-1199/1193.Monthly Transactions I/README.md‎

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@@ -65,15 +65,15 @@ Transactions</code> table:
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```sql
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# Write your MySQL query statement below
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SELECT DATE_FORMAT(trans_date,'%Y-%m') AS month
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,country
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,COUNT(*) AS trans_count
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,COUNT(IF(state = 'approved',1,NULL)) AS approved_count
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,SUM(amount) AS trans_total_amount
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,SUM(IF(state = 'approved',amount,0)) AS approved_total_amount
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SELECT
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date_format(trans_date, '%Y-%m') AS month,
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country,
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count(1) AS trans_count,
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sum(state = 'approved') AS approved_count,
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sum(amount) AS trans_total_amount,
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sum(if(state = 'approved', amount, 0)) AS approved_total_amount
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FROM Transactions
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GROUP BY month
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,country
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GROUP BY 1, 2;
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```
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<!-- tabs:end -->

‎solution/1100-1199/1193.Monthly Transactions I/README_EN.md‎

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@@ -61,15 +61,15 @@ Transactions table:
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```sql
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# Write your MySQL query statement below
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SELECT DATE_FORMAT(trans_date,'%Y-%m') AS month
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,country
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,COUNT(*) AS trans_count
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,COUNT(IF(state = 'approved',1,NULL)) AS approved_count
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,SUM(amount) AS trans_total_amount
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,SUM(IF(state = 'approved',amount,0)) AS approved_total_amount
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SELECT
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date_format(trans_date, '%Y-%m') AS month,
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country,
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count(1) AS trans_count,
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sum(state = 'approved') AS approved_count,
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sum(amount) AS trans_total_amount,
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sum(if(state = 'approved', amount, 0)) AS approved_total_amount
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FROM Transactions
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GROUP BY month
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,country
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GROUP BY 1, 2;
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```
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<!-- tabs:end -->
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@@ -1,10 +1,10 @@
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# Write your MySQL query statement below
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SELECT
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DATE_FORMAT(trans_date, '%Y-%m') AS month,
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date_format(trans_date, '%Y-%m') AS month,
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country,
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COUNT(*) AS trans_count,
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COUNT(IF(state = 'approved', 1, NULL)) AS approved_count,
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SUM(amount) AS trans_total_amount,
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SUM(IF(state = 'approved', amount, 0)) AS approved_total_amount
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count(1) AS trans_count,
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sum(state = 'approved') AS approved_count,
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sum(amount) AS trans_total_amount,
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sum(if(state = 'approved', amount, 0)) AS approved_total_amount
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FROM Transactions
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GROUP BY month, country;
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GROUP BY 1, 2;

‎solution/1200-1299/1204.Last Person to Fit in the Bus/README.md‎

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@@ -81,4 +81,20 @@ ORDER BY a.turn DESC
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LIMIT 1;
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```
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```sql
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# Write your MySQL query statement below
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WITH
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T AS (
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SELECT
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person_name,
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sum(weight) OVER (ORDER BY turn) AS s
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FROM Queue
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)
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SELECT person_name
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FROM T
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WHERE s <= 1000
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ORDER BY s DESC
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LIMIT 1;
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```
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<!-- tabs:end -->

‎solution/1200-1299/1204.Last Person to Fit in the Bus/README_EN.md‎

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@@ -84,4 +84,20 @@ ORDER BY a.turn DESC
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LIMIT 1;
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```
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```sql
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# Write your MySQL query statement below
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WITH
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T AS (
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SELECT
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person_name,
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sum(weight) OVER (ORDER BY turn) AS s
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FROM Queue
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)
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SELECT person_name
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FROM T
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WHERE s <= 1000
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ORDER BY s DESC
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LIMIT 1;
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```
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<!-- tabs:end -->
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Original file line numberDiff line numberDiff line change
@@ -1,10 +1,13 @@
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# Write your MySQL query statement below
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SELECT a.person_name
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FROM
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Queue AS a,
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Queue AS b
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WHERE a.turn >= b.turn
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GROUP BY a.person_id
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HAVING SUM(b.weight) <= 1000
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ORDER BY a.turn DESC
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WITH
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T AS (
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SELECT
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person_name,
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sum(weight) OVER (ORDER BY turn) AS s
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FROM Queue
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)
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SELECT person_name
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FROM T
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WHERE s <= 1000
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ORDER BY s DESC
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LIMIT 1;

‎solution/1200-1299/1205.Monthly Transactions II/README.md‎

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@@ -89,13 +89,13 @@ Chargebacks 表:
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```sql
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# Write your MySQL query statement below
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WITH
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t AS (
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T AS (
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SELECT * FROM Transactions
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UNION ALL
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SELECT id, country, 'chargeback'AS state, amount, cb.trans_date
94+
UNION
95+
SELECT id, country, 'chargeback', amount, c.trans_date
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FROM
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Chargebacks AS cb
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LEFT JOIN Transactions AS tx ON cb.trans_id = tx.id
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Transactions AS t
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JOIN Chargebacks AS c ON t.id = c.trans_id
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)
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SELECT
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date_format(trans_date, '%Y-%m') AS month,
@@ -104,7 +104,7 @@ SELECT
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sum(if(state = 'approved', amount, 0)) AS approved_amount,
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sum(state = 'chargeback') AS chargeback_count,
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sum(if(state = 'chargeback', amount, 0)) AS chargeback_amount
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FROM t
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FROM T
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GROUP BY 1, 2
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HAVING approved_amount OR chargeback_amount;
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```

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