set the environment variable NLS_LANG=AMERICAN_AMERICA.ZHS16GBK
this also appeared in our system. At that time, it was estimated that there was a problem with sql when it was imported from the test server (windows) to the production service (centos),. There seems to be no good way to change it. Just use a tool to generate online sql.
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1. The number of bank card digits entered by the user on the page is relatively long, so the server is loaded with long type. when saved in the oracle database, the viewing data becomes a scientific notation tag. (it is said on the Internet that the le...
the first one: write in java. @ Select ( "select bureau_code from drt_opr_area ") List < String > getAllAreas (); the second: write in xml. < select id= "selectList " resultMap= "BaseResultMap " parameterType= "com.csg.intshop.entity.DrtShopConfi...
question background A field type in both the database table and the entity class is a string type, but in the case of consecutive zeros, the actual storage in the database is "0 "-zero. try has tried non-zero numbers, which is normal, so conside...
java.sql.SQLException: Io : Bad packet type at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134) at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179) at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:...
Why is it that when executing a SUM query in the code, the query with round (), is fast, the query without round (), is slow, and the execution speed is fast in Navicat? 1, xml file, add round () sql: 2xmlround sql: ...
--- Cause: org.apache.commons.dbcp.SQLNestedException: Cannot get a connection, pool exhausted at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:185) at com.ibatis.sqlmap.engine.mapping.s...
oracle is installed on centos, and centos is installed on win10 s virtual machine on a notebook how do I use this win10 laptop to access the oracle database on the internal virtual machine (centos)? ...
I would like to ask you that when I use mybatis to execute sql to get data, I define the mapping in xml as follows: <select id="testQry" parameterType="hashmap" resultType="hashmap"> SELECT DISTINCT username FROM t_u...