You must use an SQL declare section to identify host variable declarations. SQL declare sections alert the precompiler to any host variables that can be referenced in subsequent SQL statements. For example: EXEC
SQL-procedure-body:存储过程的主体 ---SQL-variable-declaration:变量声明 ---Variable declaration statement代码 DECLARE variable-name data-type [DEFAULT value] variable assign statement:变量赋值语句 常见的变量赋值语句有:SET,VALUES INTO,SELECT INTO,FETCH语句 SET variable-name = value SET variable-name =...
[root@www ~]# declare [-aixr] variable 选项与参数: -a :将后面名为 variable 的变量定义成为数组 (array) 类型 -i :将后面名为 variable 的变量定义成为整数数字 (integer) 类型 -x :用法与 export 一样,就是将后面的 variable 变成环境变量; -r :将变量配置成为 readonly 类型,该变量不可被更改内...
CREATE PROCEDURE proc1 (IN num int, IN new_status varchar(10)) P1: BEGIN DECLARE SQLCODE INTEGER default 0; DECLARE SQLSTATE CHAR(5) default ‘‘; DECLARE v_trunc INTEGER default 0; DECLARE overflow CONDITION FOR SQLSTATE '22001'; DECLARE CONTINUE HANDLER FOR overflow BEGIN INSERT INTO tab...
language sql begin declare v_counter integer default 0; declare v_firstnme varchar(12); declare v_midinit char(1); declare v_lastname varchar(15); declare c1 cursor for select firstnme, midinit, lastname from employee; declare continue handler for not found ...
DECLARE CURSOR、DECLARE STATEMENT、FETCH、OPEN、CLOSE、WHEN、TAG、PREPARE、EXECUTE、IMMEDIATE、INCLUDE、SELECT INTO、VALUES INTO、DECLARE VARIABLE、DECLARE PROCEDURE、DESCRIBE、GET DIAGNOSTICS、SIGNAL、RESIGNAL、ALLOCATE CURSOR、ALLOCATE DESCRIPTOR、DEALLOCATE DESCRIPTOR、GET DESCRIPTOR 及 SET DESCRIPTOR 在互動式 ...
SQL 过程中的局部变量支持允许您在 SQL 过程逻辑的支持下指定和检索值。 SQL 过程中的变量通过 DECLARE 语句定义。 可使用 SET 语句或 SELECT INTO 语句将值指定给变量,也可在声明变量时将其指定为缺省值。可对变量指定字面值、表达式、查询结果和专用寄存器值。
DB2procedure create or replace procedure sjh.five_category_loan_quality(in input_date date) Language sql specific five_category_loan_quality ---存储过程body begin declare variable_name type; se…
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-- 更多变态级DB2 SQL写法,AnyOneTable表示任意一个存在的表 select 234 from AnyOneTable; select distinct 234 from AnyOneTable; select distinct 234 as 1 from AnyOneTable;select 'DB2变态级的SQL哈哈' from AnyOneTable; select distinct 'DB2变态级的SQL哈哈' from AnyOneTable; ...