User login validation in the part of the database connection problem-CodePudding

SELECT "student table". "student id",
"Students table". "user name",
"The student table". "password"
INTO: stu_no,
: usename,
: password
Students FROM "table", "
WHERE students table. The user name=: sle_1. Text;
This code in the student table. Student id and stu_no how is associated with together?
Stu_no, usename, password is defined in what place?

CodePudding user response:

Variables and the field is in accordance with the order assignment, the first field will be put into the first variable... Etc.
If the variable is only used in an event, then directly on the top of the script written string stu_no, usename, password
Can, if in the event of an other or other control used in a form that can be defined as the instance level (instance), if other PBL, or use different form, is defined as a global (global).