C Mysql Update With Parameters
For now based on previous suggestions that was given to me online i ve incorporated a using statement to avoid problems in sql connection and then i applied parameterized queries to avoid sql injection.
C mysql update with parameters. 11 4k 10 10 gold badges 49 49 silver badges 80 80 bronze badges. That is the syntax for update statement in sql you have to use that syntax otherwise you will get the exception. The count variable gets incremented each time the procedure. Der standard ist eine leere auflistung.
To support older code you can set old syntax yes on your connection string. What i have is a table where several of the columns are named incrementally. And then add your parameters accordingly. Add parameters to the sqlcommand object.
Die parameter der transact sql anweisung oder der gespeicherten prozedur. Im folgenden beispiel wird veranschaulicht wie ein erstellt wird sqlcommand und wie parameter hinzugefügt werden. If you do this please be aware that an exception will not be throw if you fail to define a parameter that you intended to use in your sql. You prob know this already or it was just omitted in the snippet but i think you forgot to call read on your instance of executereader.
Command text update student set address add city cit where firstname fn and lastname ln. We will create the employees table insert some initial data add a record using c then update the record we inserted. The data stored in these locations is updated at different times and i have another column to store the number of times the row has been updated. Then update your param constructor to pass in the correct param name you don t need to include the param indicator here although it doesn t make any difference if you do.
Im c verwendet sie beim umgang mit mysql database wie query insert update delete ein objekt mysqlcommand mysqlcommand eine klasse wird aus dbcommand ausgeweitert. I am working on a stored procedure in mysql to update a row in a sql table. Share follow answered. Falls sie query insert update oder delete in der oracle database brauchen sollen sie oraclecommand benutzen oder sqlcommand für sql server benutzen.
4 739 9 9 gold badges 28 28 silver badges 32 32 bronze badges. Let s follow the steps below to understand the insert and update process to the sql server database. Asked dec 5 10 at 22 51. How can i update multiple tables in mysql with a single query.
The default is an empty collection. The parameters of the transact sql statement or stored procedure. Share improve this question follow edited jan 17 13 at 20 07. I was also been given an advice to use sqlparameter arrays to supplement the parameterized queries that i implemented.