使用SQL计算宝宝每次吃奶的时间间隔(续)
- 2019 年 12 月 17 日
- 筆記
本文是《使用SQL计算宝宝每次吃奶的时间间隔》的续篇，因为我工作繁忙，时常不能及时帮助媳妇儿记录，为了让不懂数据库的媳妇儿也可以自己用手机熟练操作。我继续做了一些修正和封装：
- 1.给媳妇儿的手机下载一个terminal终端软件termius，实现只需打开app就可以连接到环境；
- 2.跟媳妇儿进一步沟通需求，按她能够接受的使用习惯来修正并封装程序，原则是尽可能的简化操作。
先来看下改进后最终的使用效果：
--1.手机上打开termius软件，点击进入到终端，输入 h 可以看到所有命令的说明： [oracle@jystdrac1 ~]$ h **Command for Baby's feed_time:** Usage: v - View Today's Result. vv <'mmdd'> - View one day's Result. i - Insert a row using current time. ii <'mmdd hh24:mi'> - Insert a row using input time. d <id> - Delete a mistake row by id. u <label> <id> - Update a mistake row by id. h - Help --2.输入 v 可以看到今天的喂奶时间和间隔： [oracle@jystdrac1 ~]$ v View Today's Result: ID FEED_TIME L LAG(min) LAG(h) ---------- ----------- - ---------- ---------- 53 12-15 01:00 N 140 2.33 54 12-15 04:08 N 188 3.13 55 12-15 07:35 N 207 3.45 56 12-15 10:40 N 185 3.08 69 12-15 13:16 N 156 2.6 70 12-15 14:32 N 76 1.27 82 12-15 17:14 N 163 2.71 83 12-15 19:15 N 121 2.01 8 rows selected. --3.输入 i 可以直接以当前系统时间插入一条数据，并显示插入后的结果： [oracle@jystdrac1 ~]$ i Insert a row using current time: 1 row created. Commit complete. View Today's Result: ID FEED_TIME L LAG(min) LAG(h) ---------- ----------- - ---------- ---------- 53 12-15 01:00 N 140 2.33 54 12-15 04:08 N 188 3.13 55 12-15 07:35 N 207 3.45 56 12-15 10:40 N 185 3.08 69 12-15 13:16 N 156 2.6 70 12-15 14:32 N 76 1.27 82 12-15 17:14 N 163 2.71 83 12-15 19:15 N 121 2.01 94 12-15 23:02 N 227 3.78 9 rows selected. --4.输入 d <id> 可以删除id对应的那行记录，并显示删除后的结果： [oracle@jystdrac1 ~]$ d 94 Delete a mistake row by id: Enter value for id: old 1: delete from t_baby where id = &id new 1: delete from t_baby where id = 94 1 row deleted. Commit complete. View Today's Result: ID FEED_TIME L LAG(min) LAG(h) ---------- ----------- - ---------- ---------- 53 12-15 01:00 N 140 2.33 54 12-15 04:08 N 188 3.13 55 12-15 07:35 N 207 3.45 56 12-15 10:40 N 185 3.08 69 12-15 13:16 N 156 2.6 70 12-15 14:32 N 76 1.27 82 12-15 17:14 N 163 2.71 83 12-15 19:15 N 121 2.01 8 rows selected. --5.输入 u <label> <id> 可以更新指定id的label值，比如将id=55的记录label值修改为'L'，代表这次喂奶量很少，不参与计算 [oracle@jystdrac1 ~]$ u l 55 Update a mistake row by id: Enter value for label: Enter value for id: old 1: update t_baby set label = upper('&label') where id = &id new 1: update t_baby set label = upper('l') where id = 55 1 row updated. Commit complete. View Today's Result: ID FEED_TIME L LAG(min) LAG(h) ---------- ----------- - ---------- ---------- 53 12-15 01:00 N 140 2.33 54 12-15 04:08 N 188 3.13 56 12-15 10:40 N 392 6.53 69 12-15 13:16 N 156 2.6 70 12-15 14:32 N 76 1.27 82 12-15 17:14 N 163 2.71 83 12-15 19:15 N 121 2.01 7 rows selected. --6.输入 u <label> <id> 可以更新指定id的label值，比如将id=55的记录label值修改回'N',代表这次喂奶量正常，参与计算 [oracle@jystdrac1 ~]$ u n 55 Update a mistake row by id: Enter value for label: Enter value for id: old 1: update t_baby set label = upper('&label') where id = &id new 1: update t_baby set label = upper('n') where id = 55 1 row updated. Commit complete. View Today's Result: ID FEED_TIME L LAG(min) LAG(h) ---------- ----------- - ---------- ---------- 53 12-15 01:00 N 140 2.33 54 12-15 04:08 N 188 3.13 55 12-15 07:35 N 207 3.45 56 12-15 10:40 N 185 3.08 69 12-15 13:16 N 156 2.6 70 12-15 14:32 N 76 1.27 82 12-15 17:14 N 163 2.71 83 12-15 19:15 N 121 2.01 8 rows selected. --7.输入 ii <'mmdd hh24:mi'> 可以插入指定日期和时间 [oracle@jystdrac1 ~]$ ii '1215 23:00' Insert a row using input time(mmdd mi:ss) eg: 1215 10:00 Enter value for feed_time: old 1: insert into t_baby(id,feed_time) values(s1.nextval,to_date('&feed_time','mmdd hh24:mi')) new 1: insert into t_baby(id,feed_time) values(s1.nextval,to_date('1215 23:00','mmdd hh24:mi')) 1 row created. Commit complete. View Today's Result: ID FEED_TIME L LAG(min) LAG(h) ---------- ----------- - ---------- ---------- 53 12-15 01:00 N 140 2.33 54 12-15 04:08 N 188 3.13 55 12-15 07:35 N 207 3.45 56 12-15 10:40 N 185 3.08 69 12-15 13:16 N 156 2.6 70 12-15 14:32 N 76 1.27 82 12-15 17:14 N 163 2.71 83 12-15 19:15 N 121 2.01 95 12-15 23:00 N 225 3.74 9 rows selected. --8.删除id=95的这条测试记录 [oracle@jystdrac1 ~]$ d 95 Delete a mistake row by id: Enter value for id: old 1: delete from t_baby where id = &id new 1: delete from t_baby where id = 95 1 row deleted. Commit complete. View Today's Result: ID FEED_TIME L LAG(min) LAG(h) ---------- ----------- - ---------- ---------- 53 12-15 01:00 N 140 2.33 54 12-15 04:08 N 188 3.13 55 12-15 07:35 N 207 3.45 56 12-15 10:40 N 185 3.08 69 12-15 13:16 N 156 2.6 70 12-15 14:32 N 76 1.27 82 12-15 17:14 N 163 2.71 83 12-15 19:15 N 121 2.01 8 rows selected. --9.使用 vv 'mmdd' 可以显示指定日期的喂奶间隔情况： [oracle@jystdrac1 ~]$ vv 1214 View Today's Result: Enter value for feed_time: Enter value for feed_time: old 2: from (select t.*, lag(feed_time) over(order by id) l_time from t_baby t where label <> 'L') where feed_time >= to_date('&feed_time','mmdd') and feed_time < to_date('&feed_time','mmdd') + 1 new 2: from (select t.*, lag(feed_time) over(order by id) l_time from t_baby t where label <> 'L') where feed_time >= to_date('1214','mmdd') and feed_time < to_date('1214','mmdd') + 1 ID FEED_TIME L LAG(min) LAG(h) ---------- ----------- - ---------- ---------- 41 12-14 01:55 N 265 4.42 42 12-14 04:58 N 183 3.05 43 12-14 08:25 N 207 3.45 44 12-14 11:23 N 178 2.97 45 12-14 12:23 N 60 1 46 12-14 15:00 N 157 2.62 47 12-14 17:22 N 142 2.37 48 12-14 18:45 N 83 1.38 49 12-14 22:40 N 235 3.92 9 rows selected.
经过一番演示，媳妇儿的反馈是非常满意的，实际她最常用的还是v和i，非常方便，其他命令偶尔使用，其实只需记住h可以获取到帮助即可。下面将本次的修正和封装过程记录一下：
1.环境变量配置别名
为了简化操作，我将环境变量设置一些别名。
[oracle@jystdrac1 ~]$ cat ~/.bash_profile # 这里省略原有环境变量内容,下面为在源文件基础上追加的内容： # Alias for baby's feed_time: alias h=/home/oracle/baby_readme.sh alias v=/home/oracle/baby_view.sh alias i=/home/oracle/baby_insert.sh alias d=/home/oracle/baby_delete.sh alias u=/home/oracle/baby_update.sh alias ii=/home/oracle/baby_insert_diy.sh alias vv=/home/oracle/baby_view_diy.sh
2.系统shell脚本
baby_readme.sh
vi baby_readme.sh
#!/bin/bash # script:baby_readme.sh # version:1.01 #------------------------------------------------------------- echo "**Command for Baby's feed_time:**" echo "Usage:" echo " v - View Today's Result." echo " vv <'mmdd'> - View one day's Result." echo " i - Insert a row using current time." echo " ii <'mmdd hh24:mi'> - Insert a row using input time." echo " d <id> - Delete a mistake row by id." echo " u <label> <id> - Update a mistake row by id." echo " h - Help" #-------------------------------------------------------------
baby_view.sh
vi baby_view.sh
#!/bin/bash # script:baby_view.sh # version:1.01 #------------------------------------------------------------- sqlplus -S test/test <<EOF PROMPT View Today's Result: @v3 EOF #-------------------------------------------------------------
baby_insert.sh
vi baby_insert.sh
#!/bin/bash # script:baby_insert.sh # version:1.01 #------------------------------------------------------------- sqlplus -S test/test <<EOF PROMPT Insert a row using current time: @i1 PROMPT View Today's Result: @v3 EOF #-------------------------------------------------------------
baby_delete.sh
vi baby_delete.sh
#!/bin/bash # script:baby_delete.sh # version:1.01 #------------------------------------------------------------- sqlplus -S test/test <<EOF PROMPT Delete a mistake row by id: @d1 $1 commit; PROMPT View Today's Result: @v3 EOF #-------------------------------------------------------------
baby_insert_diy.sh
vi baby_insert_diy.sh
#!/bin/bash # script:baby_insert_diy.sh # version:1.01 #------------------------------------------------------------- sqlplus -S test/test <<EOF PROMPT Insert a row using input time(mmdd mi:ss) eg: 1215 10:00 @i2 $1 commit; PROMPT View Today's Result: @v3 EOF #-------------------------------------------------------------
baby_update.sh
vi baby_update.sh
#!/bin/bash # script:baby_update.sh # version:1.01 #------------------------------------------------------------- sqlplus -S test/test <<EOF PROMPT Update a mistake row by id: @u1 $1 $2 commit; PROMPT View Today's Result: @v3 EOF #-------------------------------------------------------------
baby_view_diy.sh
vi baby_view_diy.sh
#!/bin/bash # script:baby_view.sh # version:1.01 #------------------------------------------------------------- sqlplus -S test/test <<EOF PROMPT View one day's Result: @v4 $1 $1 EOF #-------------------------------------------------------------
3.底层SQL文本
--echo "v - View Today's Result." [oracle@jystdrac1 ~]$ cat v3.sql select id, to_char(feed_time,'mm-dd hh24:mi') "FEED_TIME", label, round((feed_time - l_time) * 24 * 60) "LAG(min)", round((feed_time - l_time) * 24, 2) "LAG(h)" from (select t.*, lag(feed_time) over(order by id) l_time from t_baby t where label <> 'L') where feed_time >= trunc(sysdate) / -- echo " vv <'mmdd'> - View one day's Result." [oracle@jystdrac1 ~]$ cat v4.sql select id, to_char(feed_time,'mm-dd hh24:mi') "FEED_TIME", label, round((feed_time - l_time) * 24 * 60) "LAG(min)", round((feed_time - l_time) * 24, 2) "LAG(h)" from (select t.*, lag(feed_time) over(order by id) l_time from t_baby t where label <> 'L') where feed_time >= to_date('&feed_time','mmdd') and feed_time < to_date('&feed_time','mmdd') + 1 / --echo "i - Insert a row using current time." [oracle@jystdrac1 ~]$ cat i1.sql insert into t_baby(id,feed_time) values(s1.nextval,sysdate) / commit / --echo "ii - Insert a row using input time." [oracle@jystdrac1 ~]$ cat i2.sql insert into t_baby(id,feed_time) values(s1.nextval,to_date('&feed_time','mmdd hh24:mi')) / --echo "d - Delete a mistake row by id. " [oracle@jystdrac1 ~]$ cat d1.sql delete from t_baby where id = &id / --echo "u - Update a mistake row by id." [oracle@jystdrac1 ~]$ cat u1.sql update t_baby set label = upper('&label') where id = &id /
SQL文本独立出来也方便后续需求有变化时快速更改。
