type显示参数数据类型和返回类型。
支持ALTERPROCEDURE以便修改参数数据类型。
Alter procedure support is provided for Oracle procedures to alter the parameter data types.
可以根据过程的DB 2平台预先填写参数数据类型，以便于选择。
Parameter data types are pre-filled based on the DB2 platform for the procedure for easy selection.
在这种情况下，编译器尝试确定哪个重载函数要求最少数量的参数数据类型强制。
In this situation, the compiler attempts to determine which overloaded function requires the least number of data type coercions of the arguments.
在比较操作的时候，API会比较名称（区分大小写）以及输入参数数据类型，并忽略返回值类型。
When comparing operations, it performs a case-sensitive name match along with a comparison of input argument data types, and ignores return types.
OUTPUT：这个4GL函数返回的结果的数据类型；必须从左到右与函数定义中的输出参数一一对应，还必须与输出参数数量匹配。
OUTPUT: Data types of result returned from this 4GL function; must have one-to-one correspondence from left to right, and must match the count of arguments, as in the function definition.
INPUT：这个4gl函数的输入参数的数据类型；必须从左到右与函数定义中的输入参数一一对应，还必须与输入参数数量匹配。
Input: Data types of the input arguments to this 4gl function; must have one-to-one correspondence from left to right, and must match the count of arguments, as in the function definition.
INPUT：这个4gl函数的输入参数的数据类型；必须从左到右与函数定义中的输入参数一一对应，还必须与输入参数数量匹配。
Input: Data types of the input arguments to this 4gl function; must have one-to-one correspondence from left to right, and must match the count of arguments, as in the function definition.
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