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all records of the table Select * from employee; // View all codes used by the data Show variables like 'character % '; // Modify the client encoding to GBK Set character_set_client = GBK; // Modify the result set encoding to GBK. Set character_set_results = GBK; // Other insert statements Create Table ( Username varchar (20 ), Password varchar (20) ); Insert into a values ('zs', '123 '); Insert into a values ('wangw', '000000'), ('lisi', '000000 '); Insert a valu

;--; Update [users] Set email = (select top 1 PWD from password where id = 2) Where name = FFFF ;--; Update [users] Set email = (select top 1 name from password where id = 2) Where name = FFFF ;--The above statement is to get the first user table in the _ blank> database, and put the table name in the FFFF user's mailbox field.By viewing FFFF user information, you can obtain the first table named ad.Then, the ID of the table is obtained based on the table name ad. The name of the second table i

, sex, birthday, salary, entry_date, resume) values (1, 'hangsan', 'male', '2017-11-23 ', 1987, '2017-2-18', 'Good boy '); insert into employee (id, name, sex, birthday, salary, entry_date, resume) values (2, 'wangwu', 'male', '2017-11-23 ', 1988, '2017-2-18 ', 'Good boy '); insert into employee (id, name, sex, birthday, salary, entry_date, Resume) values (3, 'xiaohong ', 'female', '2017-11-23 ', 1983, '2017-2-18', 'Good girl '); insert into employee (id, name, sex, birthday, salary, entry_date,

How does php compare whether two arrays are equal to two arrays? $ aarray (aaa, bbb, ddd, aaa); $ barray (aaa, ddd, aaa, bbb ); to determine whether the two arrays are equal, the premise is that they cannot be sorted using built-in functions such as sort. If you must use a built-in function, which sort function is the

Java class loading sequence and java Loading Sequence Java class loading sequence I. Loading Sequence 1. initialize static member variables of the parent class 1.1 static code block 1.2. Common Code Block 1.3 No parameter Constructor 2. Static code block of the parent class 3. initialize static member variables of subclass 3.1 static code block 3.2. Common Code Block 3.3 No parameter Constructor 4. Static code blocks of child classes 5. initialize common member variables of the parent class 5.1

Class loading order for JavaFirst, load order1. Initialization of the static member variable of the parent class1.1. Static code block1.2, ordinary code block1.3, no parameter constructor2. Static code block for parent class3. Initialization of a static member variable of a subclass　　3.1. Static code block　　3.2, ordinary code block3.3, no parameter constructor4. Static code blocks for subclasses5. The normal member variable of the parent class is initialized5.1. Static code block5.2, ordinary co

Web site for testing: Http://www.pagecolumn.com/tool/regtest.htmthe string used for testing is: BsdfefsdfAaaDfsdfaAAA G: Global lookup Mode No g will only match 1, plus g to find all the matches Regular expression: /aaa/The results match the following: Bsdfefsdf Aaa Dfsdfa Aaa Regular expression: /aaa/gThe result

[users] set email= (select top 1 pwd from password where id=2) where name=ffff;--; Update [users] set email= (select top 1 name from password where id=2) where name=ffff;--The above statement is to get the first user table in the _blank> database and place the table name in the FFFF user's mailbox field.By looking at FFFF's user profile, you can get the first one to use the table called ADAnd then get the ID of the table based on the table name ad to get the name of the second table.Insert into

table that stores all table names, views, constraints, and other objects, xtype= ' U ' and status>0, the name of the table that the user creates, and the above statement takes the first table name out and compares it to 0. Let the error message expose the table name. ;; and (select top 1 col_name (object_id (' table name '), 1) from sysobjects) >0After you get the table name from ⑤, use object_id (' table name ') to get the internal id,col_name (table name id,1) of the table name to represent t

. ;; and (select top 1 col_name (object_id (' table name '), 1) from sysobjects) >0 After you get the table name from ⑤, use object_id (' table name ') to get the internal id,col_name (table name id,1) of the table name to represent the 1th field name of the table, and replace 1 with 2,3,4 ... you can get the name of the field in the puzzle sheet one by one. Post.htm content: The main is to facilitate input. Name of his data table: Id=1552;update AAA