当你在使用Oracle数据库时遇到“oracle connections could not be acquired from the underlying database!”这样的错误,通常意味着应用程序无法从数据库连接池中获取到有效的数据库连接。以下是一些可能的原因以及相应的解决步骤,你可以按照这些步骤进行排查和解决: 检查数据库服务是否正在运行: 确保Oracle数据库服务已...
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root cause java.sql.SQLException: Connections could not be acquired from the underlying database! com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:106) com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:529) com.mchange.v2.c3p0.impl.Abs...
[ See nested exception: java.sql.SQLException: Connections could not be acquired from the underlying database! ] To Resolve the Error Check the jdbc.properties configuration file in the $RBACX_HOME/conf folder. Check the conf-context.xml file in the /WEB-INF/ folder. Ensure that JDBC ...
; nested exception is java.sql.SQLException: Connections could not be acquired from the underlying database! 冬眠操作: 不能打开连接; uncategorized SQLException为SQL [态度恶劣); SQL状态[零位); 误差编码[0); 连接不能从部下的数据库获取! ; 被筑巢的例外是java.sql.SQLException : 连接不能从部下的...
嗯嗯,pl/sql可以连上oracle数据库,但是jdbc连不上,也不知道为什么??
To simplify X.500 Directory Access Protocol, LDAP: s Uses TCP/IP connections which are much more lightweight compared to the OSI communication stack required by X.500 implementations s Eliminates little-used and redundant features found in the X.500 Directory Access Protocol s Represents most ...
As shown in Figure 6, a new user is guided through the "Start Here" interface to first select the "Connections" for accessing the applications (ex: Oracle Sales Cloud, Salesforce.com, etc.). Next, "Integration" is selected to map data from one application to the next. For example, a...
settings, e.g., date formats and PL/SQL package state These use cases generally have multi-process applications running on multiple hosts with a large number of connections to the database kept persistent, but not wanting to consume the database server memory when the connections are not ...
DTS_E_CONNECTTOSERVERFAILED_NOTREGISTERED DTS_E_CONNECTTOSERVERFAILED_UNAVAILABLE DTS_E_COULD_NOT_DETERMINE_DATASOURCE_DBMSNAME DTS_E_COULDNOTCREATECOPYBUFFER DTS_E_COULDNOTFINDINPUTBUFFERCOLUMNBYLINEAGE DTS_E_COULDNOTGETCOLUMNINFOFORCOPYBUFFER DTS_E_COULDNOTGETCOLUMNINFOFORINPUTBUFFER DTS_...