convert sql server to postgresql

The following SQL statement passed the test in Access XP Query Table creation: Create Table tab1 ( Id counter, Name string, Age integer, [Date] datetime ); TIPS: Use counter to declare the auto-increment field. Fields with field names as keywords are enclosed in square brackets []. It is also feasible to use numbers as field names. Index creation:The following statement creates a repeatable index on the date column of tab1Create index idate on

Category: DB database website Optimization 109 reading comments (0) Favorites Report Directory (?) [+] 2. Memory bottleneck of SQL database When memory is insufficient Suspected Memory leakage CPU bottleneck Performance problems encountered How to locate these performance problems I. SQL database CPU bottleneck There are many statuses of a working process of

Today, a friend recommended a job is to transfer SQL Server 2005 database to SQL Server 2000, but the actual operation encountered a lot of problems, online search a number of ways to display here, and the use of my problems and solutions are recorded together for later inspection The previous steps are the same as

server| Access | server Configure the SQL Server Analysis server to be accessed via HTTP Its HTTP access mechanism is the same as SQL2000 analysis, which enables access to the Analysis server by adding Application Mappings (ISAPI

PATH clause in earlier versions of SQL Server, and you can use slashes to define the hierarchy of XML. For JSON auto, which automatically creates nested JSON sub-arrays in the table structure used in the query statement, similar to the for XML Auto attribute. If you have used functions and operators in PostgreSQL that involve JSON, you will notice that

\'+@strDataBaseName + '_db_' + Replace(Convert(Char( -),getdate(), the),' ',"')+'. bak' --Add this sentence to prevent the database from being used resulting in unsuccessful execution ALTER DATABASE [Database name] SETOFFLINE with ROLLBACKIMMEDIATERestore Database [Database name] from Disk=@FileFlag with file=1, REPLACE, RecoveryALTER Database [Database name] SetOnline Create job schedule: Reference Http://wenku.baidu.com/link?url=HLojwfVr1gkEu

™ expression:Data_typeThe data types provided by the target system, including bigint and sql_variant. You cannot use a user-defined data type.LengthOptional parameters for nchar, nvarchar, char, varchar, binary, or varbinary data types.StyleA date format style whereby DateTime or smalldatetime data is converted to character data (nchar, nvarchar, char, varchar, nchar, or nvarchar data type) or a string format style that will float, Real, money, or smallmoney data is converted to character data (

:/*************************************** ************************************// Description: generate text files based on SQL statements (with a date stamp, fields are separated by commas)// The names of all tables in the SQL statement must be marked in detail using [database name]. [user name]. [Table name]// Create: maggiefengyu mail: maggiefengyu@tom.com Date:**************************************** ***

index is useless for expressions that do not meet the SARG format. After introducing SARG, let's summarize the experiences of using SARG and drawing different conclusions from some materials in practice: 1. Whether the Like statement belongs to the SARG depends on the type of the wildcard used. -- Example:Name like 'zhang % '--, which belongs to SARG -- And:Name like '% Zhang' --, does not belong to SARG. The reason is that the wildcard % is enabled in the string so that the index cannot be use

In-depth analysis of SQL Server triggers and SQL A trigger is a special type of stored procedure, which is different from the stored procedure we introduced earlier. A trigger is triggered by an event and automatically called for execution. The stored procedure can be called by the name of the stored procedure. Ø what is a trigger? A special stored procedure that

Label:Recently, many students asked a question, how to export MSSQLSERVER database and the data inside the SQL Script , the main question is MSSQLServer2000 and 2005, because 2008 of the manager has this feature, 2000 and 2005 are not.Surf the internet for a bit, useful commands or something, here's a relatively simple and easy-to-use approach:Need a tool----Navicat PremiumNavicat Premium A very powerful database management tool, you can connect to My

ORACLE paging Query SQL statementThe following is a very inefficient The code is as follows Copy Code SELECT * FROM (select A.*, rownum rn from (SELECT * to Ipay_rcd_fs_return ORDER BY id DESC) A) WHERE RN This is a highly efficient The code is as follows Copy Code Select A.*, RowNum RN from (SELECT * to Ipay_rcd_fs_return ORDER BY id desc) A WHERE rownum MySQL paging Quer

');--Find Index Select CharIndex (' o ', ' Hello World ', 6);--Find Index Select QuoteName (' Abc[]def '), QuoteName (' 123]45 '); --Exact numbers Select STR (123.456, 2), str (123.456, 3), str (123.456, 4); Select STR (123.456, 9, 2), str (123.456, 9, 3), str (123.456, 6, 1), str (123.456, 9, 6); Select difference (' Hello ', ' HelloWorld ');--compare strings the same Select difference (' Hello ', ' world '); Select difference (' Hello ', ' Llo '); Select difference (' Hello ', ' hel '); Selec

@datetime char(14)DECLARE @path varchar(255)DECLARE @bakfile varchar(255)set @name='V5HQS'set @datetime=CONVERT(char(8),getdate(),112) + REPLACE(CONVERT(char(8),getdate(),108),':','')set @path='E:\DataBaseBAK'set @bakfile=@path+''+@name+'_'+'bak_'+@datetime+'.BAK'backup database @name to disk=@bakfile with name=@namego The above section describes how to execute SQL