1. SQL PLUS-like window: File->New->Command Window, this is similar to oracle's client tool sql plus, but it is much easier to use.
2. Set the keyword to automatically capitalize: Tools->Preferences->Editor, select the Keyword case as Uppercase. In this way, when you enter a sql statement in the window, the keywords will be automatically capitalized, while others are lowercase. In this way, it is easier to read the code and maintain a good coding style. Similarly, in Tools->Preferences->Code Assistant (assistant), you can set the code prompt delay time, prompt when entering a few characters, and uppercase and lowercase database objects. capitalization, etc.;
3. View the execution plan: Select the SQL statement to be analyzed, and then click the Explain plan button (that is, the execution plan) on the toolbar, or press F5 directly; this is mainly used to analyze the execution efficiency of the SQL statement, analyze the structure of the table, and is convenient for sql Provide an intuitive basis for tuning;
4. Automatic replacement: Quickly enter SQL statements, such as input s, press space, and automatically replace with SELECT; for another example, enter sf, press space, and automatically replace with SELECT * FROM, which is very convenient and saves a lot of time to write Duplicate SQL statements.
Setting method: menu Tools–>Preferences–>Editor–>AutoReplace (automatic replacement)–>Edit
1), create a text file shortcuts.txt, and write the following content:
s=SELECT
copy the code and save it to the ~/PlugIns directory under the installation path of PL/SQL Developer
2), Tools–>Preferences–>User Interface– >Editor->AutoReplace, select the Enable checkbox, then browse the file to select the shortcuts.txt created earlier, and click Apply.
3) Restart PL/SQL Developer, enter s+space in the sql window, and sc+space to test.
Note: shortcuts.txt cannot be deleted, otherwise the shortcut keys cannot be used
Some rules are defined below for reference
i=INSERT
u=UPDATE
s=SELECT
f=FROM
w=WHERE
o=ORDER BY
d=DELETE
df=DELETE FROM
sf=SELECT * FROM
sc=SELECT COUNT(*) FROM
sfu=SELECT * FROM FOR UPDATE
cor=CREATE OR REPLACE
p=PROCEDURE
fn=FUNCTION
t=TIGGER
v=VIEW
sso=SET serveroutput ON;
设置快捷键(设置方法：菜单Tools–>Preferences–>用户界面–>键配置)
新建sql窗口：ctrl+shift+s
新建命令窗口：ctrl+shift+c
新建测试窗口：ctrl+shift+t
PL/SQL Developer美化器：ctrl+shift+f
重做：ctrl+shift+z
撤销：ctrl+z
清除：ctrl+d(慎用，不可恢复，俺是禁用哦O(∩_∩)O~)
选中所有：ctrl+a
缩进：tab
取消缩进：shift+tab
大写：ctrl+shift+x
小写：ctrl+shift+y
注释：ctrl+h
取消注释：ctrl+m
查找：ctrl+f
显示表结构：ctrl+鼠标悬停在表名上
模板列表：shift+alt+r
窗口列表：ctrl+w
5、执行单条SQL语句:按F8键
6、TNS Names：菜单Help->Support Info(支持信息)->TNS Names，可以查看Oracle的tnsnames.ora;
7、调试存储过程
在使用PL/SQL Developer操作Oracle时，有时候调用某些存储过程，或者调试存储过程；
调用存储过程的方法：
1)、首先，在PL/SQL Developer左边的Browser中选择Procedures，查找需要调用的存储过程；
2)、然后，选中调试的存储过程，点击右键，选择Test，在弹出来的Test scrīpt窗口中，对于定义为in类型的参数，需要给该参数的Value输入值；最后点击上面的条数按钮：Start debugger或者按F9；
3)、最后点击：RUN 或者Ctrl+R 。
调试快捷键
切换断点：ctrl+b
开始：f9
运行：ctrl+r
单步进入：ctrl+n
单步跳过：ctrl+o
单步退出：ctrl+t
运行到异常：ctrl+y
8、模板快捷键
9、登录后默认自动选中My Objects
默认情况下，PLSQL Developer登录后，Brower里会选择All objects，如果你登录的用户是dba，要展开tables目录，正常情况都需要Wait几秒钟，而选择My Objects后响应速率则是以毫秒计算的。
设置方法：
Tools菜单–>Brower Filters，会打开Brower Folders的定单窗口，把“My Objects”设为默认即可。
Tools菜单–>Brower Folders中把你经常点的几个目录（比如：Tables Views Seq Functions Procedures）移得靠上一点，并加上颜色区分，这样你的平均寻表时间会大大缩短，试试看。
优先级，从左往右
Tables–>Tablespaces–>Procedures–>Users–>Roles
转载：http://www.cnblogs.com/linjiqin/archive/2013/06/24/3152538.html