You can't use IF within a select query. Open up the SQL Books Online (press F1 while in Query Analyser) and look up CASE Gail Shaw Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci) SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability ...
Microsoft SQL Server provides options that affect the result and performance of SQL statements. You can set these options in the following ways: To set instance-wide configuration options, use the sp_configure stored procedure. To set database-level options, use the ALTER DATABASE SET Options ...
005.PGSQL-in、not in、exists、not exists、 using 的select查询、delete删除重复数据 使用及其效率对比 1. select 查询 in、not in、exists、not exists 的区别 exists 效率远远大于 in CREATESEQUENCE "ioc_dw_second"."test0002_seq" INCREMENT1MINVALUE1MAXVALUE9223372036854775807START1CACHE1CYCLE ;CREATETABLE...
It is important for developers to understand that the fuzzy search technology available in SQL Server 2005 is powerful, but it's also domain-agnostic in its implementation. Therefore, the selection of fields that provide linkage information used to measure the similarity of input and reference data...
These tools are similar to the DynPerf tool that is used in Microsoft Dynamics AX 2012. If you want more information on this, check the reference links in the Summary unit of this module. Next unit: Create a SQL trace by using the SQL Profiler Previous Next ...
Array data type in SQL server Array's IN SQL SERVER? ASCII values for extended characters Assign empty string '' if datetime is null Assign EXEC output to Variable Assigning NULL value to column name using Case Statement of where is SQL SERVER 2008 atomic if not exists() and insert or upd...
This option will force the database to be attached to the server when a connection is opened (if the database is not already attached). In addition, if AUTO_CLOSE is enabled at database creation (which is the default for SQL Server 2005 Express databases), when an...
(For this example, you'll need to run the code in a version of SQL Server 2005.) When you use TRY/CATCH, you separate your action code from error handling code. You put code for an action in a TRY block and place your error handling code in the CATCH block. If the code in the...
Also, make sure that the 64-bit version of Integration Services is installed if you are running a 64 An OLE DB error has occurred. Error code: 0x80004005 Apply substring on Decimal Assembly not found in SSIS Script Component- Random assign value to variable from flat file Assigning a value...
The FILESTREAM attribute does not transfer when you create a new table by using the SELECT INTO statement. FILESTREAM BLOBs are copied and stored in the new table as varbinary(max) BLOBs. If a FILESTREAM BLOB exceeds 2 GB, the following error message is raised and the statement is stopped:...