pl sql coding best practices

Label:The use of PL/SQL enables modular programming . In a PL/SQL block, you can define several sub-programs . Code that is relatively independent and needs to be executed frequently is defined as a subroutine that is called according to the name of the subroutine when needed.This not only facilitates the programming a

1. using %TYPEIn many cases, aPL/SQL variable can be used to store data in a database table. In this case, the variable should have the same type as the table column. For example, thefirst_name column of the students table is of type VARCHAR2 (20), and we can declare a variable as follows:DECLAREV_firstname VARCHAR2 (20);But What happens if the definition of the first_name column changes (for example, if the table changes, thecurrent type of first

Tags: 1, class SQL Plus Windows: File->new->command window, this is similar to Oracle's client tool SQL Plus, but it is much more useful. 2, set the keyword automatic capitalization: tools->preferences->editor, will keyword case select uppercase. When you enter SQL statements in a window, the keywords are automatically capitalized, and the others are lowercase.

1. Class SQL Plus window: File->new->command Window, which is similar to Oracle's client-side tool SQL Plus, is much more useful than the sqlplus in CMD. 2. Set keywords to capitalize automatically: Tools->preferences->editor, select the keyword case uppercase. When you enter SQL statements in a window, the keywords are automatically capitalized, and the others a

Tags: style color io using AR for file data art1, class SQL Plus Windows: File->new->command window, this is similar to Oracle's client tool SQL Plus, but it is much more useful.2, set the keyword automatic capitalization: tools->preferences->editor, will keyword case select uppercase. When you enter SQL statements in a window, the keywords are automatically capi

1, class SQL Plus Windows: File->new->command window, this is similar to Oracle's client tool SQL Plus, but it is much more useful.2, set the keyword automatic capitalization: tools->preferences->editor, will keyword case select uppercase. When you enter SQL statements in a window, the keywords are automatically capitalized, and the others are lowercase. This is

Note: The following contents are purely copies1, class SQL Plus Windows: File->new->command window, this is similar to Oracle's client tool SQL Plus, but it is much more useful.2, set the keyword automatic capitalization: tools->preferences->editor, will keyword case select uppercase. When you enter SQL statements in a window, the keywords are automatically capit

Tags: style blog io os using ar strong for file1, class SQL Plus Windows: File->new->command window, this is similar to Oracle's client tool SQL Plus, but it is much more useful. 2, set the keyword automatic capitalization: tools->preferences->editor, will keyword case select uppercase. When you enter SQL statements in a window, the keywords are automatically cap

Oracle client. Reason:1. easy to use. 2. not with other dependencies Oracle the program conflicts. 1. Download instantclient-basic-nt-11.2.0.3.0.zip Just need to download instantclient-basic-nt-11.2.0.3.0.zip to be able, the others are based on different needs to expand the package.: http://www.oracle.com/technetwork/topics/winsoft-085727.html 2.unzip to the local machine since we now both client and server are on the local machine, all I unzip it to Oracle server under the installation folde

Web services are being talked about and used everywhere today in Web services red-hot; Of course, there is a small part of the industry hype. Oracle has also always been at the forefront of technology, releasing expansion packs to support pl/sql access to Web Services as early as the 9i, and making the feature more powerful in Oracle 10g versions, which stems from the introduction of the UTL_DBWS package, I