sql all in one for dummies

@RETURN_VALUE 0 4 0 NULL 0 3 NULL null-null NULL int int North Wind TRADE dbo departmentsalaryinfo;1 @department 1 1 0 NULL 1 129 null NULL varchar var Char North Wind trade dbo departmentsalaryinfo;1 @average 2 2 0 NULL 1 6 NULL null-NULL NULL Money Money North Wind trade dbo departmentsalaryinfo;1 @maximum 3 2 0 NULL 1 6 NULL null-NULL NULL Money Money North Wind trade dbo departmentsalaryinfo;1 @minimum 4 2 0 NULL 1 6 NULL null-NULL NULL Money Money --Parameter name, argument type, paramete

DECLARE @tablename varchar (200)DECLARE @sql varchar (2000)DECLARE cur_t cursor FORSelect name from sysobjects where xtype= ' U ' and status> =0 and name is not in (select name from sysobjects where ID in ( Select ID from syscolumnswhere ID in (select id from sysobjects where type= ' U ')and Name= ' Createtime '))Open cur_tFETCH NEXT from cur_t to @tablenameWhile @ @FETCH_STATUS = 0BeginSet @sql = ' ALTER T

Label:To terminate with a stored procedure:Create a terminating database for all successive stored procedures under Query Analyzer, by calling the stored procedure to close all connection operations that use the database.--Create a stored procedure that terminates all processes under the database, with the parameter database nameUse masterGoCreate proc Killspbydb

].[CategoryName],[T0].[Description],[T0].[ Picture] from [dbo].[Categories] as [T0]WHERE EXISTS( SELECT NULL as [EMPTY] from [dbo].[ Products] as [T1] WHERE([T1].[discontinued] = 1) and ([T1].[CategoryID] = [T0].[CategoryID]) )AllDescription: Used to determine whether all elements in the set satisfy a certain condition;1. With conditional formvar q = from in db. Customers where c.orders.all (o = o.shipcity = = c.city )Sele

Label:can be applied to 2 different scenarios: 1. Clear all tables of data, after the data is emptied, it is best to be able to make the table identity column starting from 1 to count, so to reset the identity column's current value. 2. With replication, after the subscription synchronization data, the Subscriber data does not automatically grow, such as the self-increment ID of the 9527, but if the middle of the skipped ID, will automatically populat

Label:Use SQL Server to query the data and display all the data on the page. @ Page Language="Java" Import="Java.util.*"Pageencoding="UTF-8"%> @pageImport="Jdbc.sqlserver"%> @pageImport="Java.sql.Connection"%> @pageImport="Java.sql.Statement"%> @pageImport="Java.sql.ResultSet"%> String Path=Request.getcontextpath (); String BasePath=Request.getscheme ()+"://"+Request.getservername ()+":"+Request.getserverpo

? method is to use the DISTINCT keywordSELECT DISTINCT vend_id from Products -- Analysis: SELECT DISTINCT vend_id tells the DBMS to return only (unique) vend_id rows. If you use the DISTINCT keyword, you must precede the column name directly. 　　Note The DISTINCT keyword is used for all columns, except that the two columns are exactly the same, and all rows are retrieved2.6 Limiting resultsThe SELECT s

Oracle:SELECT * from tables with permissions in the all_tables;--system SELECT * from dba_tables;--system table SELECT * from user_tables;--the table under the current userSQL Server1, using the sysobjects system table in this table, each object created in the database (for example, constraints, defaults, logs, rules, and stored procedures) has a row, and we filter out all the records in the table that are xtype equals u, which is the table in the

Original: SQL Server queries all table names and rows of dataQuery all indicateSelectfromwhere xtype='u'select* from sys.tablesQuerying all table names and rows in the databaseSELECTA.name as [TABLE NAME], B.rows as [RECORD COUNT] fromsysobjects asaINNER JOINsysindexes asB ona.ID=b.idWHERE(A.type= 'u' ) and(B.

// ================================================ ======================================= // //// // Function getsqlservers // //// Obtain all the SQL services of the Local Machine // Purpose get the local SQL servers // //// // Argment // //// // Return local SQL Server LIST // //// // Author chenhuicong 2010-12-24

Click Manage/SQL server proxy/jobCreate a job:On the General tab, enter "name" in "regular backup database", "enable", select "check", and "target local server ","Category" select "database service ",On the "Steps" tab, create a step. Step name: backup database; Type: Transact-SQL script (TSQL ); Database: the database to be backed upCommand (multiple databases can be backed up at the same time ): DECLARE@