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381: SQL step by step (4) create table
SQL step by step (4) create table The create table statement is used to create a new form. The following is a statement form to create a simple format: create table "tablename" ( "column1" "data type", "column2...

382: SQL step by step (5) Insert data to table
SQL step by step (5) Insert data to table Insert statement to insert the table or to increase his data, format it as follows: insert into "tablename" (first_column, ... last_column) values (first_value, ... last_value); [] = Optional ...

383: SQL step by step (6) Delete Table
SQL step by step (6) Delete Table Drop table command is used to delete a table or all rows in the table. Its syntax is: drop table "tablename" For example the following: drop table employee; In order to delete the entire table (includ...

384: SQL step by step (7) to update records
SQL step by step (7) to update records Update statement to update or change the records matching the specified conditions, it is through the structure to achieve a statement of where. Its statement the following format: update "tablename"...

385: SQL step by step (8) to delete records
SQL step by step (8) to delete records Delete statement is used to delete records from the table or row, the statement format: delete from "tablename" where "columnname" OPERATOR "value" [and | or "column" ...

386: SQL step by step (9) SELECT statement
SQL step by step (9) SELECT statement In the above tutorial has been useful to the SELECT statement. Tutorials in this section it will be described in detail. SELECT statement is the core of SQL in your SQL statement may be used is up to the SELECT...

387: SQL step-by-step (10) Total function
SQL step-by-step (10) Total function The total function of all the following table: MIN Return to a given out in the smallest numerical ...

388: SQL step-by-step (11) GROUPBY clause
SQL step-by-step (11) GROUP BY clause First of all, to talk about the GROUP BY clause syntax: SELECT column1, SUM (column2) FROM "list-of-tables" GROUP BY "column-list"; GROUP BY clause that will focus on the line all togeth...

389: SQL step-by-step (12) HAVING clause
SQL step-by-step (12) HAVING clause HAVING clause to give the following syntax: SELECT column1, SUM (column2) FROM "list-of-tables" GROUP BY "column-list" HAVING "condition"; The HAVING clause allows you to specif...

390: Database of attack
Database of attack Attacks on the database (recommended) 1. Breakthrough script restrictions. For example, a page a text box that allows you to enter a user name, but it limits you can only enter the 4 characters. Many procedures are restrictions...

391: select-SQL workflow
select - SQL workflow Section I select - SQL workflow thd Delivery date of the bill of lading No. thdbh thrq 01 2000/01/02 02 2000/01/15 03 2000/02/01 Product Code No. delivery bill of lading number thdbh cpbh Thsl 01 001 5 01 003 15 01 005 12 0...

392: The application packet groupby
sub-group by the application of Section V of the application of sub-group by bh sl aaa 1 aaa 4 ccc 2 bbb 5 aaa 9 bbb 7 sele bh, sum (sl) as total_sl; from temp1; grou by bh; orde by bh; into curs temp2 Aaa 1 Aaa 4 Aaa 9 aaa 14 ccc 2 bbb 12 aaa...

393: The use of view - to try a
The use of view - to try a Section II, the use of view - to try a The first application is to create libraries using a remote view. Easy to set up view can be parameterized, it can return only one or a small number of records to support the cache ...

394: Proficient in database entry Series - Part 5 skills
Proficient in database entry Series - Part 5 skills The design principles of large databases Author: think about finishing: a good database products in the South China Sea does not mean there is a good system, if not reasonable to design a database...

395: T-SQL command in the use of SQLServer query (2)
T-SQL command in the SQL Server query the use of (2) ...

396: T-SQL command in the use of query SQLServer (1)
T-SQL command in the SQL Server query the use of (1) DBCC DROPCLEANBUFFERS In order to run the above, we will see in the results window had not seen the new data, the top of the window, there will be the following information: CPU time = 10 ms, e...

397: From IIS to SQL database security
From IIS to SQL database security Function Filter_SQL (strData) Dim blnFlag Dim i logo blnFlag = Flase filter and, if they have filters, it is true arrayFilter = Split (strFilter ,",") For i = 0 To UBound (arrayFilter) If Instr (str...

398: SQLServer Performance Analysis of the parameters
SQL Server Performance Analysis of the parameters When you doubt the impact of computer hardware is the performance of SQL Server to run when the main reason can be SQL Server Performance Monitor to monitor the load on the corresponding hardware in...

399: 6 full access to SQL syntax
6 full access to SQL syntax The establishment of the maintenance of form Will be the basic syntax of SQL made a presentation, but are biased in favor of a database query and filter data, but in reality, we can order through the SQL done, the next ...

400: 7 full access to SQL syntax
7 full access to SQL syntax DELETE statement We can use the DELETE statement to delete records in the table. (Note: After the record is deleted, no longer be able to recover, so the conditions set to the right) DELETE [table .*] FROM tableexpres...


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