jdbc

问题 I have a java application which runs on IBM i. It creates connection to AS400 database using jdbc. It does not specify the database name in JDBC connection URL, means it creates connection to default system database associated with *SYSBAS. Now I want my application to run on iASP. When running on iASP it fails to connect to database. IBM i documentation says that we must specify RDB name in "database name" property of jdbc connection URL to connect. problem here is that, IBM i documentation

问题 I'm still pretty new to Java and was playing around with the GUI builder to learn some of Java's OO and other programming concepts. I created a very basic banking system where customer can deposit money and withdraw money, basically. I don't particularly have a problem with my code as everything works, I just have a problem about database connections. Since the code to create a connection is always repeated, I created a database class such as below: public class DB { static Connection c;

问题 I'm still pretty new to Java and was playing around with the GUI builder to learn some of Java's OO and other programming concepts. I created a very basic banking system where customer can deposit money and withdraw money, basically. I don't particularly have a problem with my code as everything works, I just have a problem about database connections. Since the code to create a connection is always repeated, I created a database class such as below: public class DB { static Connection c;

问题 How can I monitor JDBC calls(Oracle/MySql/Postgre etc.) statistics for my spring boot application with Grafana/Premetheus?. Do we have any plugin for it ?. is it possible to capture this statistics through Grafana/Prometheus? Specifically I am looking for statistics like, i.e. How many open connection I have with database? Whether my database is up or not? What queries are causing longest response time etc ?. 回答1: You can try using micrometer. This is the metrics provider for spring boot. I'm

问题 How can I monitor JDBC calls(Oracle/MySql/Postgre etc.) statistics for my spring boot application with Grafana/Premetheus?. Do we have any plugin for it ?. is it possible to capture this statistics through Grafana/Prometheus? Specifically I am looking for statistics like, i.e. How many open connection I have with database? Whether my database is up or not? What queries are causing longest response time etc ?. 回答1: You can try using micrometer. This is the metrics provider for spring boot. I'm

问题 I am trying to connect to SQL Server from linux using its latest JDBC driver in a spring boot application. When I use eclipse to run junit testcase, I get a "ssl handshake" error. When I run in command line using mvn everything is fine. Do I miss something or make any mistake within my configuration: @RunWith(SpringRunner.class) @SpringBootTest public class BarcodeRepositoryTest { @Autowired private BarcodeRepository addressRepository; @Test public void testFetchData() { List<Barcode>

问题 This question already has answers here : Access restriction on class due to restriction on required library rt.jar? (15 answers) Access restriction: Is not accessible due to restriction on required library ..\jre\lib\rt.jar (10 answers) Closed 5 years ago . I'm trying to understand how to work with Spring JDBC framework. I've found example on http://www.tutorialspoint.com/spring/spring_jdbc_example.htm and trying to implement in my own project. This is my example package test; import javax

问题 I'm making book store and so far i only have 3 tables. Book: - id:(int) primary key, autoincrement, not null, - title:(varchar) not null, - price: (decimal) not null Cart: -id:(int) primary key, autoincrement, not null and Article: - id:(int) primary key, autoincrement, not null, - title:(varchar) not null, - price: (decimal) not null, - cart_id:(int) foreign key referencing cart For me it's logical when user clicks on "add to cart" button to check if cart already exist, if exist i will

问题 I am trying to read 2 kafka topics using JDBC sink connector and upsert into 2 Oracle tables which I manually created it. Each table has 1 primary key I want to use it in upsert mode. Connector works fine if I use only for 1 topic and only 1 field in pk.fields but if I enter multiple columns in pk.fields one from each table it fails to recognize the schema. Am I missing any thing please suggest. name=oracle_sink_prod connector.class=io.confluent.connect.jdbc.JdbcSinkConnector tasks.max=1

问题 We are upgrading our DB from oracle 10g to 11g. I hope our current JDK1.6 will support this. What will be ideal JDBC versions for Oracle 11g ? Currently we are using ojdbc.14.jar , will it support for 11g ? Please confirm me 回答1: According to Oracle FAQ, you should use OJDBC7.jar for java version 8 回答2: Are you using Java inside the database? Or are you using Java to execute commands on the database? If the former, see the product sheet for the Oracle version you're moving to. If the latter,