oracle jdbc example

In Oracle, fields of the LOB (LargeObject) type are more and more used. This type of field has a large capacity (up to 4 GB of data), and a table can have multiple fields of this type, which is flexible, applicable to business areas with a large data volume (e.g., archives, etc ). LONG, LONGRAW, AND OTHER TYPES In Oracle, fields of the LOB (Large Object, Large Object) type are increasingly used. This type o

name private static String classname= " Oracle.jdbc.driver.OracleDriver " ; Url private static String url="Jdbc:oracle:thin : @192.168.2.2:1521:java46 " ; Connect to database user name private static String username= "Scott" ;Password to connect to the database private static String password= "NIIT" ;Declares aConnection private static Connection Connection = Null; The method is statically decorated to form a static code block, and the value is loaded oncePubl

There are usually four connection methods to choose from. Here I only use two of themI use tomcat under win98The server is winnt and Oracle is installedMy class path is: D: omcatwebappsROOTWEB-INFclassesyourpackageJsp path: D: omcatweb‑rootCall path: http: // 127.0.0.1: 8080/connOracle. jsp(You can't do it. You can try my path ^_^)1. Use the JDBC_ODBC bridge to connectFirst, remember to create an ODBC connection in the system data source. ^ _ ^ (you c

There are usually four connection methods to choose from. Here I only use two of themI use tomcat under win98The server is winnt and Oracle is installedMy class path is: D: omcatwebappsROOTWEB-INFclassesyourpackageJsp path: D: omcatweb‑rootCall path: http: // 127.0.0.1: 8080/connOracle. jsp(You can't do it. You can try my path ^_^)1. Use the JDBC_ODBC bridge to connectFirst, remember to create an ODBC Connection in the system data source. ^ _ ^ (y

#-*-coding:utf-8-*- fromPysparkImportSparkcontext, sparkconf fromPyspark.sqlImportSqlContextImportNumPy as Npappname="Jhl_spark_1" #name of your applicationmaster ="Local" #set up a standaloneconf = sparkconf (). Setappname (AppName). Setmaster (Master)#Configure Sparkcontextsc = Sparkcontext (conf=conf) SqlContext=SqlContext (SC) URL='JDBC:ORACLE:THIN:@127.0.0.1:1521:ORCL'TableName='V_JSJQZ'Properties={"User":"Xho","Password":"SYS"}DF=SQLCONTEXT.READ.JDBC (url=url,table=tablename,properties=p

Tags: Prepare not class establish connection RAC for ACK TAC databasePackage JDBC; Import java.sql.Connection;Import Java.sql.DriverManager;Import java.sql.SQLException; Import java.sql.PreparedStatement;Import Java.sql.ResultSet; public class Testoracle { public static void Main (string[] args) {1. Load DriverConnection conn = null;PreparedStatement PS = null;ResultSet rs = null;try {Class.forName ("Oracle.jdbc.OracleDriver");2. Establish a connectio

data rollback failed!") ");}}Log.error ("Cleanup data failed with error message:" +ex.getmessage ());} finally {if (null! = conn) {try {Conn.close ();} catch (SQLException se) {Log.error ("Clean data, shut down database failed!");}}} The second type: in a separate query The amount of data in the SQL must not exceed 1000Workaround:For exampleSelect * FROM table_name where col in (' col1 ', ' col2 ' ...)If the item in the back is too large, this error will occur over 1000.The workaround is to:Sel

The 1.Spring built-in NativeJdbcExtractor converters include:C3p0nativejdbcextractorCommonsdbcpnativejdbcextractorJbossnativejdbcextractorNativeJdbcExtractorNativejdbcextractoradapterSimplenativejdbcextractorWeblogicnativejdbcextractorWebspherenativejdbcextractorXapoolnativejdbcextractorchange the server in a timely manner to avoid wasting a lot of time.located under Org\springframework\jdbc\support\nativejdbc Converting a connection from a database