格式:SET variable_name = value/expression/NULL; 例子:SET total = (select sum(c1) from table); VALUE INTO: 为变量赋值 格式:VALUES 值 INTO 变量名; 例子:VALUES 'TEST' INTO v1; SELECT INTO : 为变量赋值 格式:SELECT 字段/函数 INTO 变量名 FROM
CREATE VARIABLE loginTime TIMESTAMP DEFAULT CURRENT TIMESTAMP 1. 要创建表示员工所属部门的变量,使用以下语句: CREATE VARIABLE schema1.gvDeptno INTEGER DEFAULT ((select deptno from hr.employees where empUser = SESSION_USER)); 1. 2. 如果希望创建一个全局变量表示最高级安全级别,使用下面的语句: CREATE...
问db2如何在select子句中使用变量EN下面来总计下之前的随笔中所说过的所有的SELECT子句的顺序。 子句 ...
EXECSQLBEGINDECLARESECTION;charvarsql;/* allowed */EXECSQLENDDECLARESECTION; The C or C++ precompiler only recognizes a subset of valid C or C++ declarations as valid host variable declarations. These declarations define either numeric or character variables. Host variables can be grouped into a s...
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 ...
Explanation: Host variable &1 not character. 说明:主机变量&1不是字符。 SQL5047 SQLCODE -5047 SQLSTATE 42616 SQL5047 SQLCODE -5047 SQLSTATE 42616 Explanation: Error processing SRTSEQ or LANGID parameter. 说明:错误处理SRTSEQ或LANGID参数。
FETCH CURRENT CONTINUE は、非 LOB 列や非 XML 列がデータを何も戻さない場合であっても、SELECT リスト内のすべての列に対してホスト変数項目を渡す必要があります。 ABSOLUTE host-variable または integer-constant が、整数値 k に割り当てられます。host-variable を指定する場合は、位取りゼロ...
19、eturn, db2 connect to dbname db2 select dec(1,31,0)/dec(1,31,5) from test 1 - 1.000000 1.000000 2 record(s) . changing this database configuration parameter and/or the registry variable may cause changes to appliions for existing databases. this can occur when the resulting scale ...
SELECT empno, firstnme, lastname, phoneno FROM employees CREATE TRIGGER new_emp1 INSTEAD OF INSERT ON employeev REFERENCING NEW AS n FOR EACH ROW INSERT INTO employees VALUES (n.empno, n.firstnme, n.lastname, n.phoneno, 0) 2)用触发器处理 XML 数据 ...
25、, 22023, 22024Explanation: Conversion error on input host variable &2.SQL0303 SQLCODE -303 SQLSTATE 22001, 42806Explanation: Host variable &1 not compatible with SELECT item.SQL0304 SQLCODE -304 SQLSTATE 22003, 22023, 22504SQL0305 SQLCODE -305 SQLSTATE 22002Explanation: Indicator variable req...