before assigning the value of an actual parameter to a formal parameter, PL/SQL converts the datatype of the value. For example, if you pass a number when the procedure expects a string, PL/SQL converts the parameter so that the
parameter[mode]datatype {:=|DEFAULT} initial_value parameter是形参名称 mode是参数模式 datatype是参数的类型 initial_value用来为形参指定缺省值 使用关键字DEFAULT或":="来指定一个缺省值。CREATEORREPLACEPROCEDUREinsert_auths( p_code auths.author_code%TYPE :='A0001', p_name auths.name%TYPEDEFAULT'...
Begin 执行部分---要执行的pl/sql语句和sql语句 Exception 例外处理部分---处理运行的各种错误 End; 注:Declare和exception部分是可选,并不是必须的。 回到顶部 存储过程 Procedure 过程有零个或多个参数,没有返回值。 创建过程语法: CREATE [ OR REPLACE] PROCEDURE [schema.]procedure_name [parameter_lister] ...
PROCEDURE GET (P_VALUE IN VARCHAR2, P_KEY_REFCUR OUT KEY_REFCUR); END PKG_TEST; CREATE OR REPLACE PACKAGE BODY PKG_TEST AS -- PROCEDURE GET(P_VALUE IN VARCHAR2, P_KEY_TABLE OUT KEY_TABLE_TYPE) IS PROCEDURE GET(P_VALUE IN VARCHAR2, P_KEY_REFCUR OUT KEY_REFCUR) IS CURSOR CUR...
You can also execute a procedure from the Oracle SQL Developer using the following steps: 1) Right-click the procedure name and chooseRun…menu item 2) Enter a value for thein_customer_idparameter and click theOKbutton. 3) The following shows the result ...
Parameters in Procedure and Functions How to pass parameters to Procedures and Functions in PL/SQL? In PL/SQL, we can pass parameters to procedures and functions in three ways. 1) IN type parameter:These types of parameters are used to send values to stored procedures. ...
procedure_name:过程名称。 parameter_declaration:参数声明,格式如下: parameter_name [ [ IN ] datatype [ { := | DEFAULT } expression ] | { OUT | IN OUT } [ NOCOPY ] datatype 1. 2. IN:输入参数。 OUT:输出参数。 IN OUT:输入输出参数。
parameterPLSQL_OPTIMIZE_LEVEL=1instead of its default value 2. In even rarer cases, you might see a change in exception behavior, either an exception that is not raised at all, or one that is raised earlier than expected. SettingPL_SQL_OPTIMIZE_LEVEL=0prevents the code from being ...
CREATE or replace PROCEDURE tp99(a9 in int,b9 in int,c9 out int) LANGUAGE plpgsql AS $$ BEGIN c9 := 88299; raise notice '===tp99==='; raise notice 'a9: %', a9; raise notice 'b9: %', b9; raise notice 'c9: %', c9; END; $$; CREATE or replace PROCEDURE tp88(a8 in int...
PL/SQL下定义常量[1]、变量、特殊类型的定义和使用、函数参数有哪几类、约束有哪几类、导入导出命令 1)定义常量、变量: 简单语法:变量名 数据类型[2]; 完整语法:变量名 [constant] 变量类型 [not null] [default 值 | :=值]; 定义了变量,变量的默认值为空,此时进行计算,结果一定...