mysql解析json字符串/数组

原始json数据

解析之后

用replace 替换多余的"符号并用’/'代替空值

sql展示

SELECT 
	REPLACE ( JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[0].number' ), '"', '' ) AS number_1,
	case when 
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[0].endElec' ),'"','' ) ='' then '/' 
	else 
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[0].endElec' ),'"','' ) 
	end  AS endElec_1,
	case when 
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[0].fixedElec' ),'"','' )='' then '/'
	else 
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[0].fixedElec' ),'"','' )
	end AS fixedElec_1,
	case when 
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[0].startElec' ),'"','' ) ='' then '/'
	else
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[0].fixedElec' ),'"','' )	
	end AS startElec_1,
	REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[1].number' ), '"', '' ) AS number_2,
	case when 
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[1].endElec' ),'"','' ) ='' then '/' 
	else 
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[1].endElec' ),'"','' ) 
	end  AS endElec_2,
	case when 
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[1].fixedElec' ),'"','' )='' then '/'
	else 
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[1].fixedElec' ),'"','' )
	end AS fixedElec_2,
	case when 
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[1].startElec' ),'"','' ) ='' then '/'
	else
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[1].fixedElec' ),'"','' )	
	end AS startElec_2,
	REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[2].number' ), '"', '' ) AS number_3,
	case when 
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[2].endElec' ),'"','' ) ='' then '/' 
	else 
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[2].endElec' ),'"','' ) 
	end  AS endElec_3,
	case when 
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[2].fixedElec' ),'"','' )='' then '/'
	else 
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[2].fixedElec' ),'"','' )
	end AS fixedElec_3,
	case when 
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[2].startElec' ),'"','' ) ='' then '/'
	else
		REPLACE (JSON_EXTRACT( JSON_EXTRACT( spec_tran_dist_json, '$.tieredPrice' ), '$[2].fixedElec' ),'"','' )	
	end AS startElec_3
FROM
	td_contract_other_info 
WHERE
	remove_tag = 1