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Tags: div requires code foreign key const logs open span objectDelete database all tables and all stored procedure SQL statements at once Transferring database data today requires emptying the database's original tables and stored procedures.To delete
@sql = ' Select * FROM TB Pivot (MAX (score) for course in (' [email protected]+ ')) a ' EXEC (@sql)The results of the row and column are combined with the total score, the average1. Using SQL Server 2000 static SQLSELECT name, Max (case course when ' language ' then score
Http://blog.csdn.net/xys_777/archive/2010/06/22/5685953.aspx
Summary of Row-to-column conversion problems-1. Row-to-column conversion (various problems in the forum will be sorted out later)
--- 1. Simplest row-to-column Conversion/*
Question: Suppose there is a student orders table (TB) as follows:Name course scoreZhang San Language 74James math 83Zhang San phys
Query the SQL statement that all databases consume disk space size:SelectTable_schema, Concat (truncate(sum(data_length)/1024x768/1024x768,2),'MB') asData_size,concat (truncate(sum(index_length)/1024x768/1024x768,2),'MB') asindex_size fromInformation_schema.tablesGroup byTable_schemaOrder byData_lengthdesc;SQL statements that query the size of
the Microsoft SQL Server instance. The name of the global temporary table starts with a mathematical sign (#). After being created, it is visible to all users. All users who reference this table are deleted when they are disconnected from SQL
) VALUES (' Xiao Wang ', ' C # Advanced programming ', 8); INSERT into S (name,book,salednumber) values (' Xiao Li ', ' Java from beginner to proficient ', 7); INSERT into S (name,book,salednumber) VALUES (' Xiao Wang ', ' Java from beginner to proficient ', 9); INSERT into S (name,book,salednumber Values (' Xiao Li ', ' Java from beginner to proficient ', 2); INSERT into S (name,book,salednumber) VALUES (' Xiao Wang ', ' C # Advanced Programming ', 3); INSERT into S (Name,book, Salednumber) VAL
Pivot is used to rotate column values to column names (row to column)Grammar:Table_sourcepivot (Aggregation function (value_column) for Pivot_columnin (Unpivot used to set the column value to a column (that is, a column change)Gra
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[1] method:
You can query the Stored Procedure script:Select * From syscommentsYou can query the table name, view name, and stored procedure name.Select * From sysobjects-- Where xtype = 'U' -- table name-- Where xtype = 'V' -- View name-- Where xtype = 'pk' -- primary key-- Where xtype = 'P' -- Stored Procedure[2] method:1. Get
Summary of Row-to-column conversion problems-1. Row-to-column conversion (various problems in the forum will be sorted out later)
--- 1. Simplest row-to-column Conversion/*
Question: Suppose there is a student orders table (TB) as follows:Name course scoreZhang San Language 74James math 83Zhang San physical 93Li Si language 74Li Si mathematics 84Li Si physical 94
Summary of Row-to-column conversion problems-1. Row-to-column conversion (various problems in the forum will be sorted out later)
--- 1. Simplest row-to-column Conversion/*
Question: Suppose there is a student orders table (TB) as follows:Name course scoreZhang San Language 74James math 83Zhang San physical 93Li Si language 74Li Si mathematics 84Li Si physical 94
Tags: des style http color using OSTurn from:querying the underlying tables for all references in a view using SQL commandsUsing SQL commands to query all referenced base tables in a view before having written how to exploit
In MSSQL, how does one use SQL to clear data from all tables? There are three types of requirements:First, as long as the table in the database is empty;Second, the table is empty and the auto-growth column can grow from 1.Third: The table is empty, and the auto-growth column
Tags: SQL query CTS INF Query tab Data Objects Sch instances1. Querying all databases in an instance Select name,database_id from sys.databases 2. Querying all tables in the databaseSelect Table_type,table_name from Information_schema.tables ORDER BY table_name SELECT * from sysobjects where type= ' U ' ORDER by name (
How to export data and tables from SQL Server and Oracle
1. Export and import data to a database in SQL Server1. Select the database to be transferred in the SQL Server Enterprise Manager, right-click and choose
databases created on the instance of SQL Server. Because tempdb is created every time SQL Server is started, the model database must always exist in the SQL Servers system. When the CREATE DATABASE statement is issued, the first part of the database is created by copying th
When writing triggers or functions using T-SQL, a temporary table is often needed. This article introduces you to the considerations of using T-SQL temporary tables.
One, the temporary table two forms of expression.
In a SQL Server database, there are two main forms of tem
How do I update SQL statements for column data between oracle tables ?, Oraclesql
Table A (id, name, age, home_adders, phone_number) and Table B (id, name, adders, number, the two tables have two fields with the same id and name, and can uniquely identify A row. Update the adders and number information in table B to
SQL Server temporary tableYou can also create a temporary table. Temporary tables are similar to permanent tables, but temporary tables are stored in tempdb. They are automatically deleted when they are no longer used.There are two types of temporary
Overview of SQL Server database dimension tables and fact tables:
Fact table
Each data warehouse contains one or more fact tables. Fact tables may contain business sales data, such as cash register transactions
The resulting da
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