1、定义 所谓存储过程(Stored Procedure),就是一组用于完成特定数据库功能的SQL语句集,该SQL语句集经过编译后存储在数据库系统中。在使用时候,用户通过指定已经定义的存储过程名字并给出相应的存储过程参数来调用并执行它,从而完成一个或一系列的数据库操作。 2、存储过
(2).SELECT INTO STATEMENT语句 该语句将select到的结果赋值给一个或多个变量,例如: CREATEORREPLACEPROCEDUREDEMO_CDD1ISs_nameVARCHAR2;--学生名称s_ageNUMBER;--学生年龄s_addressVARCHAR2;--学生籍贯BEGIN--给单个变量赋值SELECTstudent_addressINTOs_addressFROMstudentwherestudent_grade=100;--给多个变量赋值SELE...
2. if 条件 then 语句序列1; esle 语句序列; end if; 3. if 条件 then 语句; elsif 语句 then 语句; else 语句; end if; 例: 代码语言:javascript 代码运行次数:0 declarevarnumber;psal test_procedure.money%type;begin select t.money into psal from test_procedure t where t.name='XX天';ifps...
注:在存储过程(PROCEDURE)和函数(FUNCTION)中没有区别;在视图(VIEW)中只能用AS不能用IS;在游标(CURSOR)中只能用IS不能用AS。 二.输出案例 代码语言:javascript 代码运行次数:0 运行 AI代码解释 create or replace procedure myDemo01asbegin dbms_output.put_line('hello word, my name is stored procedure')...
Oracle makes a distinction between "invokers" (a user executing a stored procedure) and "definers" (the user under which the CREATE PROCEDURE statement was issued).By default, stored procedures are executed with the rights of the definer, even when the invoker is a different user. That ...
SSRS: Show a row only if negative value exists SSRS:Nested IIF inside Switch not working SSRS. How to merge cells using expressions? SSRS. Not passing fields/parameters to report when stored procedure keeps parameters inside IF statement SSRS/Export to exce - The number in this cell is forma...
Oracle Database always performs necessary locking to ensure data concurrency, integrity, and statement-level read consistency. You can override these default locking mechanisms. For example, you might want to override the default locking of Oracle Database if: ...
to access the GOTO statement. lbl: BEGIN LEAVE lbl; END lbl; 17) Convert function calls from oracle to mysql E.g. If converting INT to VARCHAR or vice versa, don't have to use an equiv functions to TO_CHAR() as MySQL ...
{ if (resultSet != null) resultSet.close(); if (statement != null) statement.close(); if (connect != null) connect.close(); } catch (SQLException e) { e.printStackTrace(); throw e; } } } public static void main(String[] args) throws Exception { PolarDBJdbcDemo demo = new ...
asCREATE #TABLEin a stored procedure, the parser explicitly creates a temporary table. When the parser encounters SQL statements such asINSERT INTO #TABLEin a trigger or stored procedure, it implicitly creates a temporary table. An implicit creation is required when aCREATE TABLEstatement cannot ...