/*1, XML: Can recognize elements, attributes and Values 2, XPath: addressing language, similar to the Windows directory lookup (not used the dir command to go to wall) syntax format, these syntax can be combined into a bar Pieces: "." Express Yourself, "..." Represents the father, "/" means the Son, "//" means descendants, "name" means lookup by name, "@name" means look up "set [condition]" by attribute means a subset of the collection according to the condition Can be numeric: nu
Tags: SQL crawl daily DateAs follows:drop table TempdateDECLARE @sdate datetimeDECLARE @endtime datetimeSet @sdate = ' 2000/1/1 'Set @endtime = ' 2015/1/31 'Select DATEADD (Dd,row_number () over (order by "), @sdate) as date into Tempdate from master. spt_values WHERE type = ' P ' and DATEADD (Dd,number, @sdate) SELECT * FROM Master. Spt_values where type= ' P 'Select A.date,count=case when B.count was null then 0 else B.count end from Tempdate aLeft
Label:Select CONVERT (varchar), DATEPART (YYYY,A.FSSJ) as years,--get yearCONVERT (varchar), DATEPART (MM,A.FSSJ) as months,--get monthSUM (case if b.fszt in (' 1 ', ' 2 ') then A.cfs else 0 end) as Fscgnumber,SUM (A.CFS) as FsnumberFrom T_mtn_sendrecord AINNER JOIN T_mtn_sendnote B on A.DXDM=B.DXDMGROUP by CONVERT (varchar), DATEPART (YYYY,A.FSSJ), convert (varchar), DATEPART (MM,A.FSSJ))ORDER by CONVERT (int,convert (varchar), DATEPART (YYYY,A.FSSJ)),--year converted from string to numberCONVE
CREATE OR REPLACE PROCEDURE solve_lockAsV_sql VARCHAR2 (3000); --Define the SQL statement that V_sql accepts the fetch lockV_sql02 VARCHAR2 (3000);V_SQL03 VARCHAR2 (3000);KILL_SID number;Kill_serial number;Cur_lock Sys_refcursor; --Define a cursor variable, loop the SQL statement that executes the FETCH lockCur_lock02
Label:Increase exception handling CREATE OR REPLACE PROCEDURE solve_lockAsV_sql VARCHAR2 (3000); --Define the SQL statement that V_sql accepts the fetch lockV_sql02 VARCHAR2 (3000);KILL_SID number;Kill_serial number;Cur_lock Sys_refcursor; --Define a cursor variable, loop the SQL statement that executes the FETCH lockC
CREATE OR REPLACE PROCEDURE solve_lockAsV_sql VARCHAR2 (3000); --Define the SQL statement that V_sql accepts the fetch lockCur_lock Sys_refcursor; --Define a cursor variable, loop the SQL statement that executes the FETCH lockType Tp_lock is record (--a variable that defines the record typeV_sid number,V_type VARCHAR2
The following articles mainly focus on the migration solution from Oracle SQL to DB2 SQL. Migration from Oracle SQL to DB2 SQL has become very popular, if you want to know more about its practical application, you can browse the f
In IBM's relational database product DB2, SQL Communication Area (SQLCA) is used to return nested SQL statement execution in the program to the program.In the program is targeted to the SQLCA implementation of the call, you can control the execution of various types of SQL statements in the program, so as to avoid unex
The following articles describe how to quickly migrate Oracle SQL to DB2 SQL. The following describes how to port Oracle SQL to DB2 SQL, I hope you will have a better understanding of it after browsing.
BKJIA exclusive Article] Steps for joining SQL Server in DB2:
1. Install DB2
2. Install the IBM DataDirect ODBC driver
3. Install the link connector
Or install InfoSphere DB2InfoSphere DB2 is a restricted DB2 version, which uses a link connector to connect to other relationa
Label:In IBM's relational database product DB2, SQL Communication Area (SQLCA) is used to return nested SQL statement runs in the program to the program. In the program is targeted to the SQLCA implementation of the call, you can control the execution of various types of SQL statements in the program, so as to avoid un
How can I avoid an error when executing SQL statements in DB2? This is a problem that many people have mentioned. The following describes how to execute SQL statements in DB2 and export table records for your reference.
When writing DB2
The db2 tutorial is: use SQL to query XML data in DB2 9.
Although the hybrid architecture of DB2 is quite different from that of earlier versions, it is not difficult to use its new XML features. If you are familiar with SQL, you can quickly convert this skill to processing
The DB2 tutorial is: use SQL to query XML data in DB2 9.
Although the hybrid architecture of DB2 is quite different from that of earlier versions, it is not difficult to use its new XML features. If you are familiar with SQL, you can quickly convert this skill to process
Brief introduction
Visual Explain is an outstanding tool in ibm®db2®universal database™ that programmers and DBAs use to specify the access path that the DB2 Optimizer chooses for SQL statements. In fact, Explain should be a key component of your performance monitoring strategy. Explain provides invaluable information for solving many types of performance proble
The DB2 tutorial you're looking at is using SQL to query the XML data in DB2 9.
Although DB2 's hybrid architecture is quite different from previous versions, it is not difficult to take advantage of its new XML capabilities. If you are already familiar with SQL, you will s
Label:1. Top10sql "with the most execution times"DB2 "SELECT * from Sysibmadm.snapdyn_sql ORDER BY num_executions DESC FETCH first ten rows only"2, the average execution time the longest Top10sql "DB2 "SELECT * from Sysibmadm.top_dynamic_sql ORDER BY average_execution_time_s DESC FETCH first ten rows only"3, the most r
. only fields with the flag lcfieldf_key shoshould be used as key values. the property map_name indicates whether to map fields in keyfieldlist and the target metadata by name or position.
Writeback updatesThere must be a current result set which supports writeback operations and a previous fetch from that result set. The last document fetched by the most recent fetch call is updated.
Only fields without
This article mainly describes the actual operation steps of DB2 9.7 SQL compatibility and the benefits of DB2 9.7 SQL compatibility. At the same time, this article also describes the SQL features, the following is a detailed description of the main content of the article. I
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