sql server column encryption

Document directory Example Stuff: For xml path References Example Yesterday I encountered an SQL Server problem: I need to write a stored procedure to process data in several tables. The problem is that I want to splice multiple rows in one column of a table into one row, for example, a table has two columns of data: Category Name A

The pivot and Unpivot relational operators are the new features provided by SQL Server 2005, so when you use pivot and UNPIVOT for databases that are upgraded to SQL Server 2005, the compatibility level of the database must be set to 90 (you can use sp_ Dbcmptlevel stored procedures to set the compatibility level. Usi

1, the column to change careersAfter the data is calculated and processed, the data source needed for the front-end chart is generated directly, but the program needs to write the data into the middle table, and query the data directly from the middle table the next time the data is queried.1.1-Column line wrapping syntaxTable_sourceUnpivot (Value_columnFor Pivot_columnIn ()1.2 Row

Tags: --sql Server 2005, or 2012:select * from Information_schema.tables--sql server 2000:select * from sysobjects WHERE xt ype= ' u ' select * from sysobjects WHERE xtype= ' u ' select table_name from GEOVIDNU. Information_schema. Tablesselect sobjects.namefrom sysobjects sobjectswhere sobjects.xtype = ' U ' EXEC sp_

Label:In this article, I want to talk about how SQL Server stores indexes on variable-length columns. First we create a table with variable-length columns, define the primary key above, define the clustered index above, and insert 80,000 records inside: 1 --Create a new table 2 CREATE TABLECustomers3 ( 4CustomerNameVARCHAR(255) not NULL PRIMARY KEY, 5FillerCHAR(138) not NULL 6 ) 7 GO 8 9 --Insert 80.000 Re

Original question: Dear teacher: I have a field in a table to be encrypted, for example, the salary amount and name of an employee, these two fields need to be encrypted, let others go from Enterprise Manager the contents of the Open table are a bunch of garbled characters, but under the Program select emp_id, name, wage from employees the display is correct data, what should I do? Do you have any special skills or settings to complete? Best regards

Tags: Allow set article Lin Line system height method DBCCOriginal: SQL Server modifies the Identity column method (Memo)SQL Server modifies the identity column method----allow updates to system tables exec sp_configure ' allow u

Tags: des blog http io os using AR strong SP--------------------------------------------------------------------------------------------------------------- ------------------------------------------First Floor:The service master key, which is automatically generated when needed, such as when the database master key is encrypted. And do not create by hand.ThenWe can still back it up and restore it.Backup Service Master key to File = ' E:\server_master_key.bak '

Label:Source: When SQL Server creates a composite index, the composite index column order affects the performance of the query Talk about composite indexes Write index blog Too much, has not wanted to write, there are two reasons:One is the suspicion that there are fried leftovers, brothers have said: Index, as long as the query criteria to build the index on the

TableTable nameDrop columncolumn name Determines whether the column is self-increment SQL codeif ColumnProperty(object_id(’Table'), ' col ', ' isidentity ')=1 Print' self-increment column 'Else Print' not self-increment 'SELECT * fromSys.columnsWHERE object_id=object_id(' table name ') andIs_identity=1 if ColumnProperty(object_id(’Table'), ' col ', ' isi