Updating database tables from xml

Prior to My SQL 5.5.46, SELECT * FROM person; ----------- -------- ------------ --------------------- | person_id | fname | lname | created | ----------- -------- ------------ --------------------- | 1 | Kapek | Sainnouine | 2007-07-13 | | 2 | Sajon | Rondela | 2007-07-13 | | 3 | Likame | Örrtmons | 2007-07-13 | | 4 | Slar | Manlanth | 2007-07-13 | | 5 | Stoma | Nilu | 2007-07-13 | | 6 | Nirtam | Sklöd | 2007-07-13 | | 7 | Sungam | Dulbåd | 2007-07-13 | | 8 | Sreraf | Encmelt | 2007-07-13 | ----------- -------- ------------ --------------------- 8 rows in set (0.00 sec) SELECT * FROM person2; ----------- -------- ------------ --------------------- | person_id | fname | lname | created | ----------- -------- ------------ --------------------- | 1 | Kapek | Sainnouine | 2007-07-13 | | 2 | Sajon | Rondela | 2007-07-13 | | 3 | Likema | Örrtmons | 2007-07-13 | | 4 | Slar | Manlanth | 2007-07-13 | | 5 | Stoma | Nilu | 2007-07-13 | | 6 | Nirtam | Sklöd | 2007-07-13 | | 7 | Sungam | Dulbåd | 2007-07-13 | | 8 | Sreraf | Encmelt | 2007-07-13 | ----------- -------- ------------ --------------------- 8 rows in set (0.00 sec) There is no requirement that every field in the XML file be matched with a column in the corresponding table.Fields which have no corresponding columns are skipped. If you omit the WHERE clause, all records in the table will be updated! The WHERE clause specifies which record(s) that should be updated.If the value is a list of values, the update statement replaces the old value with the list.In modifying a typed XML instance, must be an expression that can be atomized. The following examples of the replace value of XML DML statement illustrates how to update nodes in an XML document.One that has become quite a topic is XML integration for transactions to the database.In developing this process, my research of resources on the topic throughout the internet, seemed to only discuss primary functions and fundamental application.

Expression2 uses an if expression to determine the new value of the Labor Hours attribute.In the following example, a document instance is first assigned to a variable of xml type.Then, replace value of XML DML statements update values in the document.Do I have to use something different from UPDATE/REPLACE for an XML column value? This can be an expression that returns a simply typed node, because data() will be used implicitly.

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