jdbc

问题 I have an web application, Using thymeleaf, springboot, angularjs, and oracle sql developer db. Locally I am able to connect and get values from oracle. But when I push my application to cloud foundry, I am getting status=500. ERROR The url that I am unmarshalling has a untrusted certificate ("Your connection is not secured)". I added cacerts into my jvm, which allowed it to work locally. but I believe I need to add the cacerts into cloud foundry. How would I be able to do so? SSL error ERR

问题 I have an web application, Using thymeleaf, springboot, angularjs, and oracle sql developer db. Locally I am able to connect and get values from oracle. But when I push my application to cloud foundry, I am getting status=500. ERROR The url that I am unmarshalling has a untrusted certificate ("Your connection is not secured)". I added cacerts into my jvm, which allowed it to work locally. but I believe I need to add the cacerts into cloud foundry. How would I be able to do so? SSL error ERR

问题 I want to be able to run Flyway migrations inside my Java code during runtime, is there a way of achieving this? I can't seem to be able to find it in the docs. I'm using a SQLite database (if this matters at all). 回答1: Flyway::migrate() Call Flyway::migrate. To quote the documentation: package foobar; import org.flywaydb.core.Flyway; public class App { public static void main(String[] args) { // Create the Flyway instance and point it to the database Flyway flyway = Flyway.configure()

问题 I want to save following json object into PostgreSQL db table as jsonb { "fname":"john", "lname:"doe", } I am currenlty using PGObject to create object and set type to jsonb and pass value as json string Looking for a better approach with micronaut-data and micronaut Is there any native data type supported in micronaut-data to convert the Java object to JSON and store in db? How to save the data using postgres jdbc driver typecasting in query using :jsonb is already tried with raw jdbc if it

问题 I am preparing to use jdbc for the first time and am in the process of installing the jdbc driver for MySQL. However, it is unclear to me which of these files to move to the WEB_INF/lib folder in Eclipse. They both seem to contain the same content and are included together in the downloaded zip file for the MySQL connector. I have searched everywhere but have been unable to find any documentation to explain which of these files to use. 回答1: I thought you were joking, but I just downloaded the

问题 I am preparing to use jdbc for the first time and am in the process of installing the jdbc driver for MySQL. However, it is unclear to me which of these files to move to the WEB_INF/lib folder in Eclipse. They both seem to contain the same content and are included together in the downloaded zip file for the MySQL connector. I have searched everywhere but have been unable to find any documentation to explain which of these files to use. 回答1: I thought you were joking, but I just downloaded the

问题 This question already has answers here : Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver' (21 answers) Closed last month . I've recently been have lots of db connection problems. The current situation is, the driver has been updated to mysql-connector-java-8.0.22.jar for linux. The code was working and broke when I did a clean install of the OS to 20.x this caused too many problems and I reverted to 18.0.4 The class load is : try {

问题 can I place a sql query in a sql hana place holder? the following query works: Select * From table1 ('PLACEHOLDER' = ('$$IP_ShipmentDate$$', '2020-01-01')) I am trying to pass something like the following: Select * From table1 ('PLACEHOLDER' = ('$$IP_ShipmentDate$$', Select TO_VARCHAR(min("some_date"),'YYYY-MM-DD') from Table2) Currently getting a syntex error 回答1: As error says you, expressions are not supported for column view parameter: Can't use column expression as column view parameter

问题 can I place a sql query in a sql hana place holder? the following query works: Select * From table1 ('PLACEHOLDER' = ('$$IP_ShipmentDate$$', '2020-01-01')) I am trying to pass something like the following: Select * From table1 ('PLACEHOLDER' = ('$$IP_ShipmentDate$$', Select TO_VARCHAR(min("some_date"),'YYYY-MM-DD') from Table2) Currently getting a syntex error 回答1: As error says you, expressions are not supported for column view parameter: Can't use column expression as column view parameter

问题 Am not expert on web application, recently am writing a small webapp for my mobile app using servlets. My agenda is to receive data from client, and to put it into db. everything is running fine except, my database insert statement,which am trying to achieve using PreparedStatement. // This is how my insert statement looks like private String INSERT_INTO_DEVICES = "INSERT INTO travlemate.devices (owner," + "deviceid,gcmid) VALUES (?,?,?)"; // This is how am trying to insert PreparedStatement