使用autotrace(注意,autotrace traceonly后的sql会被真实执行,如果不想执行请用explain plan for)查询sql实际执行计划与解释计划结果一致: Recursive calls :执行该条语句时,对其他sql语句的调用次数,这种调用包含对该用户下的sql或者是系统的sql。 dbblock gets:Number of times a CURRENT block was requested.(nonc...
SQL Developer或其他支持替代变量的客户端，但并非所有Oracle客户端都支持替代变量）进行求值，并且在实际实...
1 . Install Oracle SQL Developer 3.0 from OTN. Follow the release notes here. 2 . Install Oracle Database 11g with the Sample Schemas.3. Unlock the HR user. Login to SQL Developer as the SYS user and execute the following command: alter user hr identified by hr account unlock; ...
Login to SQL*Plus as the SYS user and execute the following command: alter user hr identified by hr account unlock; 3 . Unzip the Oracle SQL Developer software. Note: This tutorial is developed using Oracle SQL Developer 2.1.1. However, you can also use Oracle SQL Developer 2.1.0. ...
virtual_column FILLER,--这是一个虚拟字段,用来跳过由 PL/SQL Developer 生成的第一列序号user_idnumber,--字段可以指定类型,否则认为是 CHARACTER 类型, log 文件中有显示user_name, login_times, last_login DATE "YYYY-MM-DD HH24:MI:SS"--指定接受日期的格式,相当用 to_date() 函数转换) ...
Oracle® SQL Developer Command-Line Quick Reference Release 19.1 F17301-01 April 2019 Alphabetic List of SQLcl Commands @{url|file_name[.ext]} [arg...] @@{url|file_name[.ext] } [arg...] / (slash) ACC[EPT]variable[NUM[BER] |CHAR| DATE | BINARY_FLOAT | BINARY_DOUBLE] [FOR[MA...
Repeats the current SQL in the buffer at the specified times with sleep intervals. The maximum sleep interval is 120 seconds. SCRIPT Runs the SQLcl statements in the specified script. STA[RT] { url | file_name[.ext] } [arg ...] Runs the SQLcl statements in the specified script....
In this post we’re going to talk about Oracle SQL developer “SQL Error 17002 Sqlstate 08006” error on Windows. We’ll talk about the error code and how to fix it fast. Why Does SQL Error 17002 Sqlstate 08006 Shows Up? Most of the times it shows up because there is incorrect Misc...
若要修改索引的PCTFREE的值,可以使用如下的SQL语句: 代码语言:javascript 复制 ALTERINDEXPK_TEST_LHRREBUILDPCTFREE20; 下面给出一个示例: 代码语言:javascript 复制 SYS@lhrdb>CREATETABLETEST_BLOCK_LHR(2COL1CHAR(20),3COL2NUMBER);Table created.SYS@lhrdb>CREATEINDEXIND_COL1_LHRONTEST_BLOCK_LHR(COL1)...
请将该脚本放到Pl/SQL Developer或Toad之类的工具中运行,在sqlplus中运行可能出现ORA-00933 不要忘记替换标注中的条件 自行控制commit 避免出现ORA-1555错误 该脚本目前存在一个不足,在获取rowid分块时要求大表上有适当的索引,否则可能会因为全表扫描并排序而十分缓慢,若有恰当的索引则会使用INDEX FAST FULL SCAN。