1.json字段数据更新值

update cms.cms_content set CONTENT = JSON_REPLACE(CONTENT, JSON_UNQUOTE(REPLACE(JSON_SEARCH(CONTENT, "one", "preLabel_120"),".code",".value")), CAST('["1","2","3"]' as JSON)) where id = 10634;

--sql分析

---查询path

JSON_SEARCH(CONTENT, "one", "preLabel_120")

---字符串转换成path

JSON_UNQUOTE()

---替换path的值

JSON_REPLACE()

---转换成JSON

CAST('["1","2","3"]' as JSON)

update cms_content_text set

DETAIL = JSON_REPLACE(DETAIL, '$.preUrl_122', CAST('{}' as JSON) ),

CONTENT = JSON_REPLACE(CONTENT, JSON_UNQUOTE(REPLACE(JSON_SEARCH(CONTENT, 'one', 'preUrl_122'),'.code','.value')), CAST('{}' as JSON))

where id in (select id from cms_content  where tid in (select t.ID from cms_template t where t.TYPE in (2,9)));

2.批量更新

UPDATE CMS_CONTENT SET DETAIL = CASE ID WHEN 13558 THEN JSON_REPLACE(DETAIL,"$.preLabel_120",CAST('["13552","10373","10347"]' AS JSON)) WHEN 13559 THEN JSON_REPLACE(DETAIL,"$.preLabel_120",CAST('[]' AS JSON)) END, DETAIL_ES = CASE ID WHEN 13558 THEN JSON_REPLACE(DETAIL_ES,"$.es_multi_preLabel_120",CAST('["13552","10373","10347"]' AS JSON)) WHEN 13559 THEN JSON_REPLACE(DETAIL_ES,"$.es_multi_preLabel_120",CAST('[]' AS JSON)) END, CONTENT = CASE ID WHEN 13558 THEN JSON_REPLACE(CONTENT,JSON_UNQUOTE(REPLACE(JSON_SEARCH(CONTENT,"one","preLabel_120"),".code",".value")),CAST('["13552","10373","10347"]' AS JSON)) WHEN 13559 THEN JSON_REPLACE(CONTENT,JSON_UNQUOTE(REPLACE(JSON_SEARCH(CONTENT,"one","preLabel_120"),".code",".value")),CAST('[]' AS JSON)) END, UPDATE_DATE = "2021-01-19 13:48:01.272" WHERE ID IN (13558,13559) AND TENANT_ID = 1600035223

3.插入

从一个表复制数据插入到另外一个表，目标表中任何已存在的行都不会受影响。

语法：

INSERT INTO table_xxx VALUES();INSERT INTO table_xxx SELECT xxx from table_yyy;

当表A和表B的表结构一致时，直接插入即可。

insert into A select * from B;

当表结构不一致时(字段大小、类型都相同)

insert into A(col1, col2) select col1, col2 from B;