sql server compare tables

Label:1. Create a new database TestDB 2. Create a new table for the TestDB database userinfo Create a table named UserInfo, including the above fields, where the ID is the primary key and set the identity specification, Nation set the default value "China". Add some data to the table: --using the TestDB database use TestDB go--view data in a userinfo tableSelect* fromUserInfo--add data records for UserInfo insert into UserInfo values ('1001','Zhang San','123','Wuhan Hongshan District','[email

/*--Synchronizing readersINSERT into [172.21.200.8].gdlisxp.dbo. Reader Library (library card number, reader barcode, name, gender, ID number,reader level, level Code, Unit Code, Unit, debit, issuing date, expiration date, ethnicity, reservation information)Select Xs.sfzh,xs.sfzh,xs. XM,(case XS. XBM when ' 1 ' then ' Male ' when ' 2 ' then ' women ' else ' end ' as Xb,xs.sfzh, ' student ', ' B ',DW. Unit code, ' +zy.zymc,20 ', ' 2014-09-16 18:00:00 ' as issuing date, ' 2034-09-16 18:00:00 ' as

. Extended_properties. VALUE fromsyscolumnsINNER JOINSYS. Extended_properties onSyscolumns.id=SYS. Extended_properties. major_id andsyscolumns. COLID=SYS. Extended_properties. minor_idINNER JOINSYSOBJECTS onSyscolumns.id=sysobjects.idWHERESysobjects.name=So.name andSyscolumns.name=Sc.name) Description--So . Name Table name, SC. Name Column name fromSYS. COLUMNS Sc,sys. TYPES St,sys. SYSOBJECTS so--Column name information and table structure informationWHEREsc.user_type_id=st.user_type_id andSc.o

: increments of several numbers at a time wildcard characters:_: There is only one character% any of any charactersLike ' (used to modify)Having said so much, we should pay attention to some common problems;01. Foreign Key control is not good02. In SQL Server, string and date type data are enclosed in single quotes, and numeric types are not03. Each table must have a primary key, the table without the prima

informationCreate Table table (A1 varchar), A2 char (2))--Add descriptive information to the tableEXECUTE sp_addextendedproperty n ' ms_description ', ' personnel information table ', n ' user ', n ' dbo ', n ' table ', N ' table ', NULL, NULL--Add descriptive information for field A1EXECUTE sp_addextendedproperty n ' ms_description ', ' name ', n ' user ', n ' dbo ', n ' table ', n ' table ', n ' column ', n ' A1 '--Add descriptive information for fi

SQL Server 2008 synchronous replication creates new tables/functions/stored procedures (without reinitialization of snapshots)One, in the production environment already has the transaction replication (the replication type is the transactional publication), needs the existing published database to add the table, the view, the stored procedure and so on, these cha

Tag: SQL Server CTO self-increment title NotepadOne, SQL Server table data copied to Excel1, new query, with SQL statements to read out the table data2, then, select the data, right-click, copy (also can be clicked together with the title copy), copied into Notepad (otherwis

Label:1.oracle querying the number of tables in the database:Select COUNT (*) from User_tablesThe premise of this operation is that the login is successful2.mysql querying the number of tables in the database:SELECT COUNT (*) TABLES, table_schema from INFORMATION_SCHEMA. TABLES WHERE table_schema = ' database ' GROUP b

Label: If table failure is deleted because of a foreign KEY constraint, all constraints are removed first:--/1th Step ********** Remove foreign KEY constraints for all tables *************************/ DECLAREC1cursor for Select 'ALTER TABLE ['+ object_name(parent_obj)+ '] Drop constraint ['+Name+']; ' fromsysobjectswhereXtype= 'F' OpenC1Declare @c1 varchar(8000) Fetch Next fromC1 into @c1 while(@ @fetch_status=0) begin exec(@c1) Fetch Next from

with a table without a primary key or unique key? If your table does not has a unique index (or a PRIMARY KEY constraint or UNIQUE key constraint, both of which create a U Nique index behind the scenes), then your dynamic cursor is converted to a static cursor. And all static cursors must is read only. If one of the tables referenced by the cursor has no unique index, the cursor would be converted to STATIC. And STATIC cursors is read-only. See Using

When I recently made a report using SSRS 2005, when I called a data source with a temporary table, the system would make an error and would not be able to go to the next step of the wizard as follows: There is a error in the query. Invalid object name ' #temptb '. After research, think of the following three solutions: 1. Use table variables instead of temporary tables, which avoids the syntax error of SSRS 2005, the disadvantage is that if the am

=columnproperty (a.id,a.name,' PRECISION '), Number of decimal digits =IsNull(ColumnProperty (a.id,a.name,' scale '), 0), Allow null = case Time a.isnullable=1 then ' √ 'else ' end, Default value =isnull(E.text,"), Field Description =isnull(G.[value],") from Syscolumns a Left Join systypes b on A.xusertype=b.xusertype Inner join sysobjects D on (a.id=d.id)and (d.xtype=' U ')and (d.name ' dtproperties ') Left Join syscomments e on a.cdefault=e.id Left join sys

Label:One: When paging a query, SQL Server uses the top keyword, and MySQL uses the limit e.g: Search for fifth to tenth entry-level staff SQL server2000: Select Top 6 * from EMP where empno not in (select Top 4 empno from emp Order by HireDate) order by HireDate; Mysql: SELECT * from emp order BY hire date limit 4, 6; P.s:limit a means the previous a record Lim

aggregation. // // public SqlString Terminate () { string output = string. Empty; //delete The trailing comma, if any if (this.intermediateresult! = NULL this.intermediateResult.Length > 0) { output = this.intermediateResult.ToString (0, This.intermediateResult.Length); } return new SqlString (output);}public void Read (BinaryReader R){Intermediateresult = new StringBuilder (r.readstring ());}public void Write (BinaryWriter W){W.write (This.intermediateResult.ToString ());}}H

Learning points: SQL-Build a database, build a table, build constraints, relational SQL Basic statement encyclopedia. TXT can be lifted up under the weight of lifting, lifting can not be called weight. The head must have the courage, the rise must have the emboldened. Learn to add, pride to reduce, opportunity to multiply, lazy to be apart. Three difficult problems in life: thinking, Acacia, single acacia.

forward way. You can generate DDL database scripts. This document describes reverse engineering. Start! First open EA, create a class chart, class digoal, right-click, "Import dB schema from ODBC" Then click the database name behind the database name... Button. The ODBC link is displayed. Select the tab page of machine data source and click "new. When selecting ODBC driver, note that "SQL native client" should be selected for sqlserver2005, an

cursor, cyclically obtain table space usage */DECLARE Info_cursor cursorfor select '[' + [name] + ']' FROM sys. tables WHERE type = 'U '; OPEN partition fetch next from partition INTO @ tablename WHILE @ FETCH_STATUS = 0 begin insert into # tablespaceinfo EXEC sp_spaceused @ tablename fetch next from Info_cursor INTO @ tablename end insert into partition (record_date, expiration, expiration, [table_name], [rows_count], reserved, [data_size], index_si

Tags: trace altered default tracking object modificationSQL SERVER default tracking app 3--Detection ofDDL operations for tablesDDL operations that occur on the SQL Server database, can you tell who did it?Yes. The SQL Server default trace has object modification events.This

1. Database: 32767 databases. The minimum value is 1 MB and the maximum value is 1 TB.2. Tables: each database can have a maximum of 2 billion tables.3. Column: Each table can have a maximum of 1024 columns, and each column has a maximum of 8060 bytes (except for text and image columns ). Each database of SQL Server

clustered index makes the data in the table orderly based on the key-value contact. Deciding which key value to use as a clustered key is an important factor, and when traversing to the leaf level, you can get the data itself rather than simply getting a pointer to the data (nonclustered index data is not overwritten). The clustered index has a row in the Sys.partitions area, where the index uses index_id = 1per partition, and by default, the clustered index is a single partition. If the cluste