如何摆脱这种情况，请解释其RCA和解决方案：
错误：无法在表mifostenant-default.m_loan_charge上执行Write_rows事件;无法添加或更新子行：外键约束失败（mifostenant-default.m_loan_charge，CONSTRAINT m_loan_charge_ibfk_2 FOREIGN KEY（loan_id）REFERENCES m_loan（id）），Error_code：1452;处理程序错误HA_ERR_NO_REFERENCED_ROW;
这是我的表结构
mysql> show create table `mifostenant-default`.`m_loan_charge`\G
*************************** 1. row ***************************
Table: m_loan_charge
Create Table: CREATE TABLE `m_loan_charge` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`loan_id` bigint(20) NOT NULL,
`charge_id` bigint(20) NOT NULL,
`is_penalty` tinyint(1) NOT NULL DEFAULT '0',
`charge_time_enum` smallint(5) NOT NULL,
`due_for_collection_as_of_date` date DEFAULT NULL,
`charge_calculation_enum` smallint(5) NOT NULL,
`charge_payment_mode_enum` smallint(5) NOT NULL DEFAULT '0',
`calculation_percentage` decimal(19,6) DEFAULT NULL,
`calculation_on_amount` decimal(19,6) DEFAULT NULL,
`charge_amount_or_percentage` decimal(19,6) DEFAULT NULL,
`amount` decimal(19,6) NOT NULL,
`amount_paid_derived` decimal(19,6) DEFAULT NULL,
`amount_waived_derived` decimal(19,6) DEFAULT NULL,
`amount_writtenoff_derived` decimal(19,6) DEFAULT NULL,
`amount_outstanding_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`is_paid_derived` tinyint(1) NOT NULL DEFAULT '0',
`waived` tinyint(1) NOT NULL DEFAULT '0',
`min_cap` decimal(19,6) DEFAULT NULL,
`max_cap` decimal(19,6) DEFAULT NULL,
`is_active` tinyint(1) NOT NULL DEFAULT '1',
PRIMARY KEY (`id`),
KEY `charge_id` (`charge_id`),
KEY `m_loan_charge_ibfk_2` (`loan_id`),
CONSTRAINT `m_loan_charge_ibfk_1` FOREIGN KEY (`charge_id`) REFERENCES `m_charge` (`id`),
CONSTRAINT `m_loan_charge_ibfk_2` FOREIGN KEY (`loan_id`) REFERENCES `m_loan` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=21371014 DEFAULT CHARSET=utf8
AND
mysql> show create table m_loan\G
*************************** 1. row ***************************
Table: m_loan
Create Table: CREATE TABLE `m_loan` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`account_no` varchar(20) NOT NULL,
`external_id` varchar(100) DEFAULT NULL,
`client_id` bigint(20) DEFAULT NULL,
`group_id` bigint(20) DEFAULT NULL,
`product_id` bigint(20) DEFAULT NULL,
`fund_id` bigint(20) DEFAULT NULL,
`loan_officer_id` bigint(20) DEFAULT NULL,
`loanpurpose_cv_id` int(11) DEFAULT NULL,
`loan_status_id` smallint(5) NOT NULL,
`loan_type_enum` smallint(5) NOT NULL,
`currency_code` varchar(3) NOT NULL,
`currency_digits` smallint(5) NOT NULL,
`currency_multiplesof` smallint(5) DEFAULT NULL,
`principal_amount_proposed` decimal(19,6) NOT NULL,
`principal_amount` decimal(19,6) NOT NULL,
`approved_principal` decimal(19,6) NOT NULL,
`arrearstolerance_amount` decimal(19,6) DEFAULT NULL,
`is_floating_interest_rate` bit(1) DEFAULT b'0',
`interest_rate_differential` decimal(19,6) DEFAULT '0.000000',
`nominal_interest_rate_per_period` decimal(19,6) DEFAULT NULL,
`interest_period_frequency_enum` smallint(5) DEFAULT NULL,
`annual_nominal_interest_rate` decimal(19,6) DEFAULT NULL,
`interest_method_enum` smallint(5) NOT NULL,
`interest_calculated_in_period_enum` smallint(5) NOT NULL DEFAULT '1',
`allow_partial_period_interest_calcualtion` tinyint(1) NOT NULL DEFAULT '0',
`term_frequency` smallint(5) NOT NULL DEFAULT '0',
`term_period_frequency_enum` smallint(5) NOT NULL DEFAULT '2',
`repay_every` smallint(5) NOT NULL,
`repayment_period_frequency_enum` smallint(5) NOT NULL,
`number_of_repayments` smallint(5) NOT NULL,
`grace_on_principal_periods` smallint(5) DEFAULT NULL,
`recurring_moratorium_principal_periods` smallint(5) DEFAULT NULL,
`grace_on_interest_periods` smallint(5) DEFAULT NULL,
`grace_interest_free_periods` smallint(5) DEFAULT NULL,
`amortization_method_enum` smallint(5) NOT NULL,
`submittedon_date` date DEFAULT NULL,
`submittedon_userid` bigint(20) DEFAULT NULL,
`approvedon_date` date DEFAULT NULL,
`approvedon_userid` bigint(20) DEFAULT NULL,
`expected_disbursedon_date` date DEFAULT NULL,
`expected_firstrepaymenton_date` date DEFAULT NULL,
`interest_calculated_from_date` date DEFAULT NULL,
`disbursedon_date` date DEFAULT NULL,
`disbursedon_userid` bigint(20) DEFAULT NULL,
`expected_maturedon_date` date DEFAULT NULL,
`maturedon_date` date DEFAULT NULL,
`closedon_date` date DEFAULT NULL,
`closedon_userid` bigint(20) DEFAULT NULL,
`total_charges_due_at_disbursement_derived` decimal(19,6) DEFAULT NULL,
`principal_disbursed_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`principal_repaid_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`principal_writtenoff_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`principal_outstanding_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`interest_charged_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`interest_repaid_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`interest_waived_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`interest_writtenoff_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`interest_outstanding_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`fee_charges_charged_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`fee_charges_repaid_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`fee_charges_waived_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`fee_charges_writtenoff_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`fee_charges_outstanding_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`penalty_charges_charged_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`penalty_charges_repaid_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`penalty_charges_waived_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`penalty_charges_writtenoff_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`penalty_charges_outstanding_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`total_expected_repayment_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`total_repayment_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`total_expected_costofloan_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`total_costofloan_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`total_waived_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`total_writtenoff_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`total_outstanding_derived` decimal(19,6) NOT NULL DEFAULT '0.000000',
`total_overpaid_derived` decimal(19,6) DEFAULT NULL,
`rejectedon_date` date DEFAULT NULL,
`rejectedon_userid` bigint(20) DEFAULT NULL,
`rescheduledon_date` date DEFAULT NULL,
`rescheduledon_userid` bigint(20) DEFAULT NULL,
`withdrawnon_date` date DEFAULT NULL,
`withdrawnon_userid` bigint(20) DEFAULT NULL,
`writtenoffon_date` date DEFAULT NULL,
`loan_transaction_strategy_id` bigint(20) DEFAULT NULL,
`sync_disbursement_with_meeting` tinyint(1) DEFAULT NULL,
`loan_counter` smallint(6) DEFAULT NULL,
`loan_product_counter` smallint(6) DEFAULT NULL,
`fixed_emi_amount` decimal(19,6) DEFAULT NULL,
`max_outstanding_loan_balance` decimal(19,6) DEFAULT NULL,
`grace_on_arrears_ageing` smallint(5) DEFAULT NULL,
`is_npa` tinyint(1) NOT NULL DEFAULT '0',
`total_recovered_derived` decimal(19,6) DEFAULT NULL,
`accrued_till` date DEFAULT NULL,
`interest_recalcualated_on` date DEFAULT NULL,
`days_in_month_enum` smallint(5) NOT NULL DEFAULT '1',
`days_in_year_enum` smallint(5) NOT NULL DEFAULT '1',
`interest_recalculation_enabled` tinyint(4) NOT NULL DEFAULT '0',
`guarantee_amount_derived` decimal(19,6) DEFAULT NULL,
`create_standing_instruction_at_disbursement` tinyint(1) DEFAULT NULL,
`version` int(15) NOT NULL DEFAULT '1',
`writeoff_reason_cv_id` int(11) DEFAULT NULL,
`loan_sub_status_id` smallint(5) DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `loan_account_no_UNIQUE` (`account_no`),
UNIQUE KEY `loan_externalid_UNIQUE` (`external_id`),
KEY `FKB6F935D87179A0CB` (`client_id`),
KEY `FKB6F935D8C8D4B434` (`product_id`),
KEY `FK7C885877240145` (`fund_id`),
KEY `FK_loan_ltp_strategy` (`loan_transaction_strategy_id`),
KEY `FK_m_loan_m_staff` (`loan_officer_id`),
KEY `group_id` (`group_id`),
KEY `FK_m_loanpurpose_codevalue` (`loanpurpose_cv_id`),
KEY `FK_submittedon_userid` (`submittedon_userid`),
KEY `FK_approvedon_userid` (`approvedon_userid`),
KEY `FK_rejectedon_userid` (`rejectedon_userid`),
KEY `FK_withdrawnon_userid` (`withdrawnon_userid`),
KEY `FK_disbursedon_userid` (`disbursedon_userid`),
KEY `FK_closedon_userid` (`closedon_userid`),
KEY `fk_m_group_client_001_idx` (`group_id`,`client_id`),
KEY `FK_writeoffreason_m_loan_m_code_value` (`writeoff_reason_cv_id`),
KEY `closedon_date_idx` (`closedon_date`),
CONSTRAINT `FK7C885877240145` FOREIGN KEY (`fund_id`) REFERENCES `m_fund` (`id`),
CONSTRAINT `FKB6F935D87179A0CB` FOREIGN KEY (`client_id`) REFERENCES `m_client` (`id`),
CONSTRAINT `FKB6F935D8C8D4B434` FOREIGN KEY (`product_id`) REFERENCES `m_product_loan` (`id`),
CONSTRAINT `FK_approvedon_userid` FOREIGN KEY (`approvedon_userid`) REFERENCES `m_appuser` (`id`),
CONSTRAINT `FK_closedon_userid` FOREIGN KEY (`closedon_userid`) REFERENCES `m_appuser` (`id`),
CONSTRAINT `FK_disbursedon_userid` FOREIGN KEY (`disbursedon_userid`) REFERENCES `m_appuser` (`id`),
CONSTRAINT `FK_loan_ltp_strategy` FOREIGN KEY (`loan_transaction_strategy_id`) REFERENCES `ref_loan_transaction_processing_strategy` (`id`),
CONSTRAINT `FK_m_loan_m_staff` FOREIGN KEY (`loan_officer_id`) REFERENCES `m_staff` (`id`),
CONSTRAINT `FK_m_loanpurpose_codevalue` FOREIGN KEY (`loanpurpose_cv_id`) REFERENCES `m_code_value` (`id`),
CONSTRAINT `FK_rejectedon_userid` FOREIGN KEY (`rejectedon_userid`) REFERENCES `m_appuser` (`id`),
CONSTRAINT `FK_submittedon_userid` FOREIGN KEY (`submittedon_userid`) REFERENCES `m_appuser` (`id`),
CONSTRAINT `FK_withdrawnon_userid` FOREIGN KEY (`withdrawnon_userid`) REFERENCES `m_appuser` (`id`),
CONSTRAINT `FK_writeoffreason_m_loan_m_code_value` FOREIGN KEY (`writeoff_reason_cv_id`) REFERENCES `m_code_value` (`id`),
CONSTRAINT `m_loan_ibfk_1` FOREIGN KEY (`group_id`) REFERENCES `m_group` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=875229 DEFAULT CHARSET=utf8