触发器小案例
CREATE DEFINER=`root`@`%` TRIGGER `tri_add` AFTER INSERT ON `tb_trigger` FOR EACH ROW # 行级触发器
BEGIN
# 遍历数据结束标志 0: 未结束 1：结束
declare done int default 0;
# 需要定义接收游标数据的变量
declare tcname varchar(50);
# 获取所有指定版本,失败的uiFunction测试例名，并定义游标
declare cur cursor for (select distinct tc_name from tb_report_uifunction where test_event_id in (select id from tb_test_event
where build_id=new.build_id and testtype_id=3) and test_result=0);
# 定义异常处理
declare continue handler for not found set done=1;
# 参数获取
set @testEventId = new.test_event_id; # 定义test_event_id
set @projectId = new.project_id; # 定义project_id
set @buildId = new.build_id; # 定义build_id
IF new.test_type = 1 THEN # 性能测试数据
# 获取冷启动测试的apk个数，apk_number
set @apkNumber = (select count(DISTINCT apk_package_name) from tb_report_perf_coldstart where test_event_id=@testEventId);
# 获取冷启动测试 APK平均启动时长和 （所有启动时间取平均即可）
set @csAvg = (select avg(apk_start_time) from tb_report_perf_coldstart where test_event_id=@testEventId);
# 获取冷启动测试 APK最大启动时长和 （获取单个APK各轮最大启动时长 -> 求和）
set @csMax = (select SUM(max_apk_start_time) from (select apk_package_name, MAX(apk_start_time) as max_apk_start_time from tb_report_perf_coldstart where test_event_id=@testEventId GROUP by apk_package_name) temp);
# 获取衰退率
# 获取tb_test_event中，执行项目，当前test_event的前一个test_event_id （用于获取上轮测试数据）
set @preTestEventId = (select max(id) from tb_test_event where prj_id=@projectId and testtype_id=1 and id<@testEventId);
IF @preTestEventId>0 THEN # 如果获取到，则获取前一轮的数据
# 定义pre_cs_total_avg
set @preCsAvg = (select cs_total_avg from tb_report_perf_brief where test_event_id = @preTestEventId);
# 定义pre_cs_total_max
set @preCsMax = (select cs_total_max from tb_report_perf_brief where test_event_id = @preTestEventId);
ELSE # 获取没有前一轮，则将当前数据赋予前轮（前后两轮数据没变化）
set @preCsAvg = @csAvg;
set @preCsMax = @csMax;
END IF;
# 获取平均启动和与最大启动和的衰退率
set @pectAvg = ((@csAvg-@preCsAvg)/@preCsAvg)*100;
set @pectMax = ((@csMax-@preCsMax)/@preCsMax)*100;
insert into tb_report_perf_brief(test_event_id,project_id,apk_number, cs_total_avg,cs_total_avg_pct, cs_total_max,cs_total_max_pct)
values (
@testEventId, # tb_trigger中test_event_id
@projectId, # tb_trigger中project_id
@apkNumber, # 从coldstart详表中计算apk的数量 where test_event_id=new.test_event_id
@csAvg, # 从coldstart详表中计算apk启动时间的平均值 where test_event_id=new.test_event_id
@pectAvg, # 计算apk平均值衰退
@csMax, # 当前test_event_id的apk启动时间最大值
@pectMax # 计算apk最大值衰退
);
ELSEIF new.test_type = 3 then # 若tb_trigger表中新添加记录中test_type=3,就向ui简表及相关失败率表中添加记录
# UiFunction测试参数
# 获取UiFunction测试，同一版本的总测试轮数（查询同一build下，e_round最大值即可）
set @totalRound = (select max(e_round) from tb_test_event where build_id=@buildId and testtype_id = 3);
# 获取同一版本下，UiFunction测试 测试例执行总个数 （不去重，同一测试例执行多次都算）
set @totalCases = (select count(id) from tb_report_uifunction where test_event_id in (select id from tb_test_event where build_id = @buildId and testtype_id=3));
# 获取同一版本下，UiFunction测试 测试例执行失败个数（不去重，同一测试例执行多次都算）
set @failCases = (select count(id) from tb_report_uifunction where test_event_id in (select id from tb_test_event where build_id = @buildId and testtype_id=3) and test_result=0);
# 获取同一版本下，UiFunction测试 测试例执行成功个数（不去重，同一测试例执行多次都算）
set @passCases = (select count(id) from tb_report_uifunction where test_event_id in (select id from tb_test_event where build_id = @buildId and testtype_id=3) and test_result=1);
# 计算同一版本，总的测试持续时长
# 获取同一版本下，UiFunction测试 最早的开始时间
set @minStartTime = (select MIN(start_time) from tb_test_event where build_id = @buildId and testtype_id=3);
# 获取同一版本下，UiFunction测试 最晚的结束时间
set @maxEndTime = (select MAX(end_time) from tb_test_event where build_id = @buildId and testtype_id=3);
set @totalHour = (SELECT TIMESTAMPDIFF(HOUR, @minStartTime, @maxEndTime));
# 检查该版本的简表记录是否以存在，如存在则更新，否者插入
set @passRate = @passCases/@totalCases*100;
set @uifunction_brief_id = (select id from tb_report_uifunction_brief where build_id=@buildId);
IF @uifunction_brief_id>0 THEN # 更新记录
update tb_report_uifunction_brief set total_round=@totalRound, total_cases=@totalCases, fail_cases=@failCases, pass_rate=@passRate, total_time=@totalHour where id=@uifunction_brief_id;
ELSE # 插入新纪录
insert into tb_report_uifunction_brief (build_id, total_round, total_cases, fail_cases, pass_rate, total_time) values (@buildId, @totalRound, @totalCases, @failCases, @passRate, @totalHour);
END IF;
# 往失败率表中添加记录
# 打开游标
OPEN cur;
flag_loop:loop
# 如果 done==1 结束循环
IF done=1 THEN
leave flag_loop;
END IF;
# 提取游标的值 多个值的时候：fetch xxx into xxx，xxx 按照定义游标result里值的顺序赋值
fetch cur into tcname;
IF done!=1 THEN
# 获取总的测试次数
set @totalCount = (select count(id) from tb_report_uifunction where tc_name=tcname and test_event_id in (select id from tb_test_event where build_id = @buildId and testtype_id=3));
# 获取失败测试
set @failCount = (select count(id) from tb_report_uifunction where tc_name=tcname and test_event_id in (select id from tb_test_event where build_id = @buildId and testtype_id=3) and test_result=0);
set @failRate = @failCount/@totalCount*100;
# 检查指定测试例与版本的失败率表记录是否以存在，如存在则更新，否者插入
set @uifunction_failrate_id = (select id from tb_report_uifunction_failrate where build_id=@buildId and tc_name=tcname);
IF @uifunction_failrate_id>0 THEN
update tb_report_uifunction_failrate set total_count=@totalCount, fail_count=@failCount, fail_rate=@failRate where id=@uifunction_failrate_id;
ElSE
insert into tb_report_uifunction_failrate (build_id, tc_name, total_count, fail_count, fail_rate) values (@buildId, tcname, @totalCount, @failCount, @failRate);
END IF;
END IF;
END loop;
CLOSE cur;
END IF;
END