The Declare Cursor Statement 该声明宣布光标 ; 声明游标语句
Embedded SQL Declare Cursor Syntax 嵌入式的
Use a 'DECLARE cursor' statement to define a cursor over the evaluation of the query.
使用' DECLARE CURS OR '语句在查询的评估上定义一个游标。
Definition of the required cursor does not occur separately by executing DECLARE cursor.
不需要通过执行DECLARE CURSOR单独定义所需的游标。
Instead, the remote database is just specified in the DECLARE CURSOR statement using the database option.
只需使用DATABASE选项在DECLARE cursor语句中指定远程数据库。
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