doctor appointment database design

num from table where date= ' 2014-06-10 ' and t=0;If the returned NUM is less than 20,?insert.If you want to add a cancellation?? function, can also? 10 minutes before 9:00? cannot be canceled,??? Good. Probably the idea is??。 If the Monday and Sunday, etc. can be???? Different, that $t????? One more, the key to the week. If it is?? Build??? Table for easy management.$t = Array (' MON ' = = Array (Array (' 08:00 ', ' 09:00 ', 20),.........Array (' 17:00 ', ' 18:00 ', 20),),' TUE ' = Array ());

one ???. For example, there is? Use? At am-am ???? Segment ??, Yes ?? Sentence ?.Select num from table where date = '2014-06-10 'and t = 0; If the returned num is smaller than 20 ,? Insert. If you want to add cancellation ?? Function, or? I? Cancel ?? Deadline, start? Before? Cannot cancel ,??? Okay. What is the general idea ??. What if Monday and Sunday are acceptable ???? Different, then $ t ????? What more? The key of the week. If yes ?? ? ?? Table to facilitate management. $ T = array

this database. A : the corresponding e-R figure is shown in Figure 4. 4. A hospital ward Computer Management Center needs the following information: Department: Branch name, branch address, branch telephone, doctor name Ward: Ward number, bed number, department name Doctor: Name, title, department name, age, work permit number Patient: Medical record number, na

0, the process of using E-R method to design the database concept is discussed. A : the use of E-R method for database conceptual design, can be divided into 3 steps: First, the design of local E-R mode, and then the local E-R model integrated into a global E-R mode, and fin

related.For example, when designing an order data table, you can use the customer number as a foreign key and order table to establish a corresponding relationship. You cannot add other customer information (such as name and company) fields in the order table. As shown in the following two tables, the design is a database table that meets the third paradigm. In this way, when querying order information, yo

Many-to-many relationships require at least three tables. We call one table a master table and the other a relational table, the other is called a dictionary table or sub-table (the Sub-table has few records and is basically stable, for example, the Forum name; the sub-table has many contents and the content changes, for example ). According to the database addition, deletion, query, and modification operations, you can use inner join or select * from

main sub-table is the same, the same set grouping type, the relationship table two foreign key combinations no duplicate records, the relationship table generally does not need time fields and primary keys.Interface features: Grouped by the same set, display the main table, with a search instead of a simple checkbox or multi-select Select, or the addition of one bar.For example: Download the file of the site, (File table-Relational table-file table) can be opened by software tools, software too

Tags: detailed calculation mysql Database model img composite picture MYSQ SQL databaseDatabase design has a rigorous process, according to the process of making a complete database, you can save a lot of time, but also to the greatest extent with the customer's ideas fit.Requirements Analysis phase: Analyze customer's business and data processing requirementsSum

Several forms of Database Design with many-to-many relationships Many-to-many relationships require at least three tables. We call one table a master table and the other a relational table, the other is called a dictionary table or sub-table (the Sub-table has few records and is basically stable, for example, the Forum name; the sub-table has many contents and the content changes, for example ). According t

[Switch] database design several forms of multi-to-multi-link bitsCN.com Many-to-many relationships require at least three tables. we call one table a master table and the other a relational table, the other is called a dictionary table or sub-table (the sub-table has few records and is basically stable, for example, the forum name; the sub-table has many contents and the content changes, for example ).Acco

must be an exact name that has a definite meaning in the schema. Better yet, the name should be enterprise-wide, industry-wide or globally prioritized. In the 2nd chapter, we will decide to put the data into the computer by selecting the appropriate domain. Domain idea to go back to Dr. Codd. Well, actually before this good doctor (good Doctor), because it comes from math. The data types in domain image pr

, improve development efficiency. We have a simple database table for the design discussion, step-by-step analysis of the relationship. 1 Table and field names General table name, depending on the business relationship, we can use different prefixes to differentiate, using prefixes, can be very convenient to distinguish between different business tables, such as my own general base table uses "Tb_" to

Label:14. Select question number: 4.4.4.3.2 15. (1) Readers and books: one-to-many; but what about books and readers? Bibliography and reader: one to one; Bibliography and books: one on one. (2) Borrowing also records (reader ID, book ID, loan time, should also time, return time); Reservation registration (reader ID, appointment time, appointment period, book ID). (3) Primary key FOREIGN key Reader Reader I

14.Select question number:4.4.4.3.215.(1) Readers and books: one-to-many; but what about books and readers?Bibliography and reader: one to one;Bibliography and books: one on one.(2) Borrowing also records (reader ID, book ID, loan time, should also time, return time);Reservation registration (reader ID, appointment time, appointment period, book ID).(3)Primary key FOREIGN keyReader Reader IDBibliography ISB

. Hospitalname = "Huaxi Hospital"; Data. Certificate = "XXXXX"; Data. Createtime = DateTime.Now.ToString (); Data. Department = "Facial branch"; Data. Doctor = "XXX"; Data. Sex = "male"; Data. Symptom = "XXXXXX"; Data. Diagnosisconclusion = "XXXXXX"; Data. Remark = "XXXXX"; String connstr = "Your MySQL connection string"; using (IDbConnection