Quartz.net 3.x使用总结(二)——Db持久化和集群

　　上一篇简单介绍了Quartz.net的概念和基本用法，这一篇记录一下Quartz.net通过数据库持久化Trigger和Jobs等数据，并简单配置Quartz.net的集群。

1.JobStore介绍

　　学习持久化和集群前我们先了解一下Quartz.net中的JobStore，JobStore用于追踪任务调度相关的所有数据，如Job，Trigger，Calendar等。Quartz.net 提供了两种JobStore:RAMJobStore,AdoJobStore。

RAMJobStore

　　RAMJobStore是最简单的JobStore，顾名思义这种JobStore将所有的数据都存放在内存中，这也是它运行速度快的原因，但是弊端也很明显:一旦应用结束或者遇到断电所有的数据都会丢失。RAMJobStore是默认的JobStore，我们也已通过下边的代码来显式设置使用的JobStore为RAMJobStore。

quartz.jobStore.type = Quartz.Simpl.RAMJobStore, Quartz

AdoJobStore

　　AdoJobStore通过Ado.net将数据存储在数据库中，因此可以解决断电数据丢失的问题，但是因为要读写数据库所以效率相对较低。AdoJobStore官方支持的数据库有：MySql,SqlServer,Sqllite,Oracle等，当前AdoJobStore只有一种类型JobStoreTX，这一点不同于Jave版本，java版本还有JobStoreCMT类型。

2.Db持久化和集群配置

　　Quartz.net配置数据库持久化和集群比较容易，可以分为简单的两步：

第一步：添加数据库表

　　我们首先要在数据库中添加一系列的表（在Quartz项目的database/tables文件夹下可以找到各种数据库表的生成脚本，Git地址https://github.com/quartznet/quartznet/tree/master/database/tables）。以Sqlserver为例，Sqlserver的数据表生成脚本如下：

-- this script is for SQL Server and Azure SQL
create database [QuartzDb]
go
USE [QuartzDb]
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[FK_QRTZ_TRIGGERS_QRTZ_JOB_DETAILS]') AND OBJECTPROPERTY(id, N'ISFOREIGNKEY') = 1)
ALTER TABLE [dbo].[QRTZ_TRIGGERS] DROP CONSTRAINT FK_QRTZ_TRIGGERS_QRTZ_JOB_DETAILS
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[FK_QRTZ_CRON_TRIGGERS_QRTZ_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISFOREIGNKEY') = 1)
ALTER TABLE [dbo].[QRTZ_CRON_TRIGGERS] DROP CONSTRAINT FK_QRTZ_CRON_TRIGGERS_QRTZ_TRIGGERS
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[FK_QRTZ_SIMPLE_TRIGGERS_QRTZ_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISFOREIGNKEY') = 1)
ALTER TABLE [dbo].[QRTZ_SIMPLE_TRIGGERS] DROP CONSTRAINT FK_QRTZ_SIMPLE_TRIGGERS_QRTZ_TRIGGERS
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[FK_QRTZ_SIMPROP_TRIGGERS_QRTZ_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISFOREIGNKEY') = 1)
ALTER TABLE [dbo].[QRTZ_SIMPROP_TRIGGERS] DROP CONSTRAINT FK_QRTZ_SIMPROP_TRIGGERS_QRTZ_TRIGGERS
GO

IF  EXISTS (SELECT * FROM sys.foreign_keys WHERE object_id = OBJECT_ID(N'[dbo].[FK_QRTZ_JOB_LISTENERS_QRTZ_JOB_DETAILS]') AND parent_object_id = OBJECT_ID(N'[dbo].[QRTZ_JOB_LISTENERS]'))
ALTER TABLE [dbo].[QRTZ_JOB_LISTENERS] DROP CONSTRAINT [FK_QRTZ_JOB_LISTENERS_QRTZ_JOB_DETAILS]

IF  EXISTS (SELECT * FROM sys.foreign_keys WHERE object_id = OBJECT_ID(N'[dbo].[FK_QRTZ_TRIGGER_LISTENERS_QRTZ_TRIGGERS]') AND parent_object_id = OBJECT_ID(N'[dbo].[QRTZ_TRIGGER_LISTENERS]'))
ALTER TABLE [dbo].[QRTZ_TRIGGER_LISTENERS] DROP CONSTRAINT [FK_QRTZ_TRIGGER_LISTENERS_QRTZ_TRIGGERS]


IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_CALENDARS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_CALENDARS]
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_CRON_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_CRON_TRIGGERS]
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_BLOB_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_BLOB_TRIGGERS]
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_FIRED_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_FIRED_TRIGGERS]
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_PAUSED_TRIGGER_GRPS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_PAUSED_TRIGGER_GRPS]
GO

IF  EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[QRTZ_JOB_LISTENERS]') AND type in (N'U'))
DROP TABLE [dbo].[QRTZ_JOB_LISTENERS]

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_SCHEDULER_STATE]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_SCHEDULER_STATE]
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_LOCKS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_LOCKS]
GO
IF  EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[QRTZ_TRIGGER_LISTENERS]') AND type in (N'U'))
DROP TABLE [dbo].[QRTZ_TRIGGER_LISTENERS]


IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_JOB_DETAILS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_JOB_DETAILS]
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_SIMPLE_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_SIMPLE_TRIGGERS]
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_SIMPROP_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].QRTZ_SIMPROP_TRIGGERS
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_TRIGGERS]
GO

CREATE TABLE [dbo].[QRTZ_CALENDARS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [CALENDAR_NAME] [NVARCHAR] (200)  NOT NULL ,
  [CALENDAR] [VARBINARY](MAX) NOT NULL
)
GO

CREATE TABLE [dbo].[QRTZ_CRON_TRIGGERS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [TRIGGER_NAME] [NVARCHAR] (150)  NOT NULL ,
  [TRIGGER_GROUP] [NVARCHAR] (150)  NOT NULL ,
  [CRON_EXPRESSION] [NVARCHAR] (120)  NOT NULL ,
  [TIME_ZONE_ID] [NVARCHAR] (80) 
)
GO

CREATE TABLE [dbo].[QRTZ_FIRED_TRIGGERS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [ENTRY_ID] [NVARCHAR] (140)  NOT NULL ,
  [TRIGGER_NAME] [NVARCHAR] (150)  NOT NULL ,
  [TRIGGER_GROUP] [NVARCHAR] (150)  NOT NULL ,
  [INSTANCE_NAME] [NVARCHAR] (200)  NOT NULL ,
  [FIRED_TIME] [BIGINT] NOT NULL ,
  [SCHED_TIME] [BIGINT] NOT NULL ,
  [PRIORITY] [INTEGER] NOT NULL ,
  [STATE] [NVARCHAR] (16)  NOT NULL,
  [JOB_NAME] [NVARCHAR] (150)  NULL ,
  [JOB_GROUP] [NVARCHAR] (150)  NULL ,
  [IS_NONCONCURRENT] BIT  NULL ,
  [REQUESTS_RECOVERY] BIT  NULL 
)
GO

CREATE TABLE [dbo].[QRTZ_PAUSED_TRIGGER_GRPS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [TRIGGER_GROUP] [NVARCHAR] (150)  NOT NULL 
)
GO

CREATE TABLE [dbo].[QRTZ_SCHEDULER_STATE] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [INSTANCE_NAME] [NVARCHAR] (200)  NOT NULL ,
  [LAST_CHECKIN_TIME] [BIGINT] NOT NULL ,
  [CHECKIN_INTERVAL] [BIGINT] NOT NULL
)
GO

CREATE TABLE [dbo].[QRTZ_LOCKS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [LOCK_NAME] [NVARCHAR] (40)  NOT NULL 
)
GO

CREATE TABLE [dbo].[QRTZ_JOB_DETAILS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [JOB_NAME] [NVARCHAR] (150)  NOT NULL ,
  [JOB_GROUP] [NVARCHAR] (150)  NOT NULL ,
  [DESCRIPTION] [NVARCHAR] (250) NULL ,
  [JOB_CLASS_NAME] [NVARCHAR] (250)  NOT NULL ,
  [IS_DURABLE] BIT  NOT NULL ,
  [IS_NONCONCURRENT] BIT  NOT NULL ,
  [IS_UPDATE_DATA] BIT  NOT NULL ,
  [REQUESTS_RECOVERY] BIT  NOT NULL ,
  [JOB_DATA] [VARBINARY](MAX) NULL
)
GO

CREATE TABLE [dbo].[QRTZ_SIMPLE_TRIGGERS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [TRIGGER_NAME] [NVARCHAR] (150)  NOT NULL ,
  [TRIGGER_GROUP] [NVARCHAR] (150)  NOT NULL ,
  [REPEAT_COUNT] [INTEGER] NOT NULL ,
  [REPEAT_INTERVAL] [BIGINT] NOT NULL ,
  [TIMES_TRIGGERED] [INTEGER] NOT NULL
)
GO

CREATE TABLE [dbo].[QRTZ_SIMPROP_TRIGGERS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [TRIGGER_NAME] [NVARCHAR] (150)  NOT NULL ,
  [TRIGGER_GROUP] [NVARCHAR] (150)  NOT NULL ,
  [STR_PROP_1] [NVARCHAR] (512) NULL,
  [STR_PROP_2] [NVARCHAR] (512) NULL,
  [STR_PROP_3] [NVARCHAR] (512) NULL,
  [INT_PROP_1] [INT] NULL,
  [INT_PROP_2] [INT] NULL,
  [LONG_PROP_1] [BIGINT] NULL,
  [LONG_PROP_2] [BIGINT] NULL,
  [DEC_PROP_1] [NUMERIC] (13,4) NULL,
  [DEC_PROP_2] [NUMERIC] (13,4) NULL,
  [BOOL_PROP_1] BIT NULL,
  [BOOL_PROP_2] BIT NULL,
  [TIME_ZONE_ID] [NVARCHAR] (80) NULL 
)
GO

CREATE TABLE [dbo].[QRTZ_BLOB_TRIGGERS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [TRIGGER_NAME] [NVARCHAR] (150)  NOT NULL ,
  [TRIGGER_GROUP] [NVARCHAR] (150)  NOT NULL ,
  [BLOB_DATA] [VARBINARY](MAX) NULL
)
GO

CREATE TABLE [dbo].[QRTZ_TRIGGERS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [TRIGGER_NAME] [NVARCHAR] (150)  NOT NULL ,
  [TRIGGER_GROUP] [NVARCHAR] (150)  NOT NULL ,
  [JOB_NAME] [NVARCHAR] (150)  NOT NULL ,
  [JOB_GROUP] [NVARCHAR] (150)  NOT NULL ,
  [DESCRIPTION] [NVARCHAR] (250) NULL ,
  [NEXT_FIRE_TIME] [BIGINT] NULL ,
  [PREV_FIRE_TIME] [BIGINT] NULL ,
  [PRIORITY] [INTEGER] NULL ,
  [TRIGGER_STATE] [NVARCHAR] (16)  NOT NULL ,
  [TRIGGER_TYPE] [NVARCHAR] (8)  NOT NULL ,
  [START_TIME] [BIGINT] NOT NULL ,
  [END_TIME] [BIGINT] NULL ,
  [CALENDAR_NAME] [NVARCHAR] (200)  NULL ,
  [MISFIRE_INSTR] [INTEGER] NULL ,
  [JOB_DATA] [VARBINARY](MAX) NULL
)
GO

ALTER TABLE [dbo].[QRTZ_CALENDARS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_CALENDARS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [CALENDAR_NAME]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_CRON_TRIGGERS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_CRON_TRIGGERS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_FIRED_TRIGGERS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_FIRED_TRIGGERS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [ENTRY_ID]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_PAUSED_TRIGGER_GRPS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_PAUSED_TRIGGER_GRPS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [TRIGGER_GROUP]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_SCHEDULER_STATE] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_SCHEDULER_STATE] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [INSTANCE_NAME]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_LOCKS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_LOCKS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [LOCK_NAME]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_JOB_DETAILS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_JOB_DETAILS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [JOB_NAME],
    [JOB_GROUP]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_SIMPLE_TRIGGERS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_SIMPLE_TRIGGERS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_SIMPROP_TRIGGERS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_SIMPROP_TRIGGERS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_TRIGGERS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_TRIGGERS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) 
GO

ALTER TABLE [dbo].QRTZ_BLOB_TRIGGERS WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_BLOB_TRIGGERS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_CRON_TRIGGERS] ADD
  CONSTRAINT [FK_QRTZ_CRON_TRIGGERS_QRTZ_TRIGGERS] FOREIGN KEY
  (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) REFERENCES [dbo].[QRTZ_TRIGGERS] (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) ON DELETE CASCADE
GO

ALTER TABLE [dbo].[QRTZ_SIMPLE_TRIGGERS] ADD
  CONSTRAINT [FK_QRTZ_SIMPLE_TRIGGERS_QRTZ_TRIGGERS] FOREIGN KEY
  (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) REFERENCES [dbo].[QRTZ_TRIGGERS] (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) ON DELETE CASCADE
GO

ALTER TABLE [dbo].[QRTZ_SIMPROP_TRIGGERS] ADD
  CONSTRAINT [FK_QRTZ_SIMPROP_TRIGGERS_QRTZ_TRIGGERS] FOREIGN KEY
  (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) REFERENCES [dbo].[QRTZ_TRIGGERS] (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) ON DELETE CASCADE
GO

ALTER TABLE [dbo].[QRTZ_TRIGGERS] ADD
  CONSTRAINT [FK_QRTZ_TRIGGERS_QRTZ_JOB_DETAILS] FOREIGN KEY
  (
    [SCHED_NAME],
    [JOB_NAME],
    [JOB_GROUP]
  ) REFERENCES [dbo].[QRTZ_JOB_DETAILS] (
    [SCHED_NAME],
    [JOB_NAME],
    [JOB_GROUP]
  )
GO

CREATE INDEX IDX_QRTZ_T_J ON QRTZ_TRIGGERS(SCHED_NAME,JOB_NAME,JOB_GROUP)
CREATE INDEX IDX_QRTZ_T_JG ON QRTZ_TRIGGERS(SCHED_NAME,JOB_GROUP)
CREATE INDEX IDX_QRTZ_T_C ON QRTZ_TRIGGERS(SCHED_NAME,CALENDAR_NAME)
CREATE INDEX IDX_QRTZ_T_G ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_GROUP)
CREATE INDEX IDX_QRTZ_T_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_STATE)
CREATE INDEX IDX_QRTZ_T_N_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP,TRIGGER_STATE)
CREATE INDEX IDX_QRTZ_T_N_G_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_GROUP,TRIGGER_STATE)
CREATE INDEX IDX_QRTZ_T_NEXT_FIRE_TIME ON QRTZ_TRIGGERS(SCHED_NAME,NEXT_FIRE_TIME)
CREATE INDEX IDX_QRTZ_T_NFT_ST ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_STATE,NEXT_FIRE_TIME)
CREATE INDEX IDX_QRTZ_T_NFT_MISFIRE ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME)
CREATE INDEX IDX_QRTZ_T_NFT_ST_MISFIRE ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME,TRIGGER_STATE)
CREATE INDEX IDX_QRTZ_T_NFT_ST_MISFIRE_GRP ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME,TRIGGER_GROUP,TRIGGER_STATE)

CREATE INDEX IDX_QRTZ_FT_TRIG_INST_NAME ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,INSTANCE_NAME)
CREATE INDEX IDX_QRTZ_FT_INST_JOB_REQ_RCVRY ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,INSTANCE_NAME,REQUESTS_RECOVERY)
CREATE INDEX IDX_QRTZ_FT_J_G ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,JOB_NAME,JOB_GROUP)
CREATE INDEX IDX_QRTZ_FT_JG ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,JOB_GROUP)
CREATE INDEX IDX_QRTZ_FT_T_G ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
CREATE INDEX IDX_QRTZ_FT_TG ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,TRIGGER_GROUP)
GO

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