oracle 'ORA-00900：无效的SQL语句'desc是SQLPlus命令，而不是SQL命令。不能在SQLPlus或模拟SQLPlus的某...
但是就有这样的矛盾存在:在内存资源有限的情况下,某些时候数据被cache的需求非常大,为了提高buffer hit,就需要增加Buffer Cache,但由于SGA有限,只能从其他区“抢”过来——如缩小Shared Pool,增加Buffer Cache;而有时又有大块的PLSQL代码被解析驻入内存中,导致Shared Pool不足,甚至出现4031错误,又需要扩大Shared Pool...
也许以前没有，但肯定是SQL Developer 19.1。DESC[里贝]命令只是一个SQL*Plus命令，即使您在SQL Develo...
这里比较关键的信息是第二行错误信息的错误代码:"PARSE ERROR: ospid=969851, error=903 for statement",这个例子中,它提示SQL解析出错是因为遇到了ORA-903这个错误 $ oerr ora 90300903,00000,"invalid table name"// *Cause: A table or cluster name was invalid or does not exist.// This message was a...
DESCRIBE TABLENAME gives me : "java.sql.SQLSyntaxErrorException: ORA-00900: invalid SQL statement" Jason Smit Ranch Hand Posts: 57 posted 10 years ago I have tried the following SQL but it returned an error: DESCRIBE DOGNAME; error: java.sql.SQLSyntaxErrorException: ORA-0090...
copied control file copy Finished restore at 2016-02-18 14:30:03 contents of Memory Script: { sql clone 'alter database mount standby database'; } executing Memory Script sql statement: alter database mount standby database RMAN-05529: WARNING: DB_FILE_NAME_CONVERT resulted in invalid ASM ...
ORA-01001: INVALID_CURSOR --无效指针 Your program attempts an illegal cursor operation such as closing an unopened cursor. 非法指针操作,例如关闭未打开的指针 ORA-01722: INVALID_NUMBER --无效数字 In a SQL statement, the conversion of a character string into a number fails because the string ...
这里比较关键的信息是第二行错误信息的错误代码:"PARSE ERROR: ospid=969851, error=903 for statement",这个例子中,它提示SQL解析出错是因为遇到了ORA-903这个错误 $ oerr ora 903 00903, 00000, "invalid table name" // *Cause: A table or cluster name was invalid or does not exist. ...
('ts', 'jb')) GROUP BY t.label_name, t.label_id ORDER BY requestWorkOrderNumber DESC LIMIT 10explain的结果:数据量大约400万,查询这个sql需要5s多,label_name、label_id、work_order_id都加过索引,没有效果,应该是count函数导致索引失效了。应该如何优化呢? https://segmentfault.com/q/1010000045417458...
descend text 默认DESC。指示列是按降序(DESC)还是按升序(ASC)排序 3.8.3.11 dba_constraints 描述了数据库中所有表的所有约束定义。它的列与 ALL_CONSTRAINTS 中的列相同。 名称类型说明 owner name 约束的拥有者 constraint_schema name constraint_name name 约束名字 constraint_type text 索引类型 table_schema...