com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Data source rejected establishment of connection, message from server: Too many connections
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c# winform 开启双缓冲，解决dataguidview卡顿
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dataGridView双缓冲双buffer代码
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dataset导入导出xml
dataset导入xml DataSetdt=BLL.TestClass.Getusers();dt.WriteXml("d:/xml.xml",XmlWriteMode.WriteSchema);xml导入dataset DataSetdsNew=newDataSet();ds...
datax中sqlserver 数据同步到sqlserver
{"job":{"setting":{"speed":{"channel":5}},"content":[{"reader":{"name":"sqlserverreader","parameter":{"username":"xx","password":"xx","where":"","connection":[{...
ORA-38734: Flashback log is inconsistent; belongs to another database.
文档解释ORA-38734:Flashbacklogisinconsistent;belongstoanotherdatabase.Cause:ThedatabaseIDintheflashbackdatabaselogfiledidnotmatchthedatabaseIDinthecontrolfile.Actio...
ORA-29307: datafile string error, string
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ORA-28045: SSL authentication between database and OID failed
文档解释ORA-28045:SSLauthenticationbetweendatabaseandOIDfailedCause:ServerfailedtoauthenticateitselftotheDirectory.Action:Makesurethesqlnet.orausedispointingtothewa...
ORA-24240: invalid database access descriptor (DAD) name
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