delete syntax in db2

This article mainly describes the DB2 SQL stored procedure and the authoritative grammar guide. The following is a detailed introduction to the DB2 SQL stored procedure and grammar authoritative guide. The first step is to CREATE a SQL stored PROCEDURE (SQL) statement. The syntax format is as follows: >>-CREATEPROCEDURE--procedure-name----------------------

This article mainly describes the actual operation steps for correctly creating the DB2 SQL stored PROCEDURE (create procedure (SQL) statement). First, we start with the syntax format, at the same time, there is a description of its syntax. The following is the main content of the article. The syntax format is as follo

The syntax of the DB2 index is the basic knowledge of the DB2 database. The following describes the syntax of the DB2 index in detail, hoping to help you learn the syntax of the DB2 ind

mediansalary = 0;SELECT COUNT (*) into v_numrecordsFrom staffWHERE DEPT = Deptnumber;OPEN C1;While V_counter FETCH C1 into mediansalary;SET V_counter = v_counter + 1;END while;CLOSE C1;Note: If you place the cursor in the middle segment, use "Begin ... End; ". Segment split Mark split open;Dynamic SQL1) DECLARE stmt varchar (1024);Set stmt= ' CREATE TABLE zhouhaiming (F1 smallint, F2 varchar (9), F3 char (5)) ';Prepare S1 from stmt;Execute S1;Set stmt= ' INSERT into zhouhaiming values (1, ' www

DB2 provides query language SQL (Structured Query Language) of the related database, which is a very colloquial, easy to learn and understandable syntax. This language is almost always required by every database system to represent connected operations, including the definition of data (DDL) and Data Processing (DML). SQL originally spelled sequel, the language of the prototype of "System R" in the name of

DB2 provides query language SQL (Structured Query Language) of the related database, which is a very colloquial, easy to learn and understandable syntax. This language is almost always required by every database system to represent connected operations, including the definition of data (DDL) and Data Processing (DML). SQL originally spelled sequel, the language of the prototype of "System R" in the name of

# Directly Delete the table if [quot; $ DEL_VALUEquot; quot;-quot;] thendelete_tab_data 'db2-txq # Directly Delete the table if [quot; $ DEL_VALUEquot; = quot;-quot;] then delete_tab_data = 'db2-tx q Because the data in many large tables is deleted in the project, the log-free method is adopted at first. After int

Recently, due to project requirements, shell programs are used to batch Delete business table data, but business history data needs to be retained according to business needs. Because db2 is used in the project, db2 will generate a large number of logs when deleting data. It will fill up the log file and report the error 57011. by searching for some information o

Label:DB2 the syntax for calculating two date differences in a SQL statement The end date is: 2015-10-10 11:30:00 Start Date: 2015-09-09 10:40:00 (1) Timestampdiff (8,char (end time-start time)) (overtime, seconds, zero) value of 744 hours (2) (Days (end time)-days (start time)) *24 +hour (end time)-hour (start time) (No overtime seconds) value of 745 hours (3) days (end date) The value of-days (start date) is 31 day (4) Day (end date) The value of-da

Db2 paging SQL syntax int startPage = 1 // start page int endPage; // end page int pageSize = 5; // page size int pageNumber = 1 // request page startPage = (pageNumber-1) * pageSize + 1 endPage = (startPage + pageSize); select * from (select Field 1, Field 2, Field 3, field 4, Field 5, rownumber ()Over (order by sorting field asc) as rowid from Table Name) as a where a. rowid> = StartPage AND a. rowid

When you use commands to delete a DB2 database and create a new database, there are often database alias errors. There are two possible causes of this error: 1. this database exists in the system database directory. You can see in the control center and list db directory in the DB2CLP window. 2. The database is "removed" rather than "deleted ". Another possibility is that we used the "Remove" Database Funct

There are many ways to delete DB2 data. The following describes the four most commonly used methods to delete DB2 data. If you have encountered any problems in deleting DB2 data, take a look. 1. Use the DELETE statement, namely:

DB2 table deletion is a common operation. The following describes how to delete a table in DB2 for your reference. DB2 Delete tableYou can use the drop table statement to delete a TABLE. When a table is deleted, the row containin

The following articles describe how to restore and Delete tables in DB2. In actual operations, the DB2 database stores backups and restores data in historical files, and operations such as loading data and deleting tables. if the database name is sample, you can use the following command to list the records of the table to be deleted:

Delete syntaxSingle table Syntax: delete [low_priority] [quick] [ignore] from tbl_name [where where_definition] [order by ...] [Limit Row_count] multiple table syntax: delete [low_priority] [quick] [ignore] tbl_name[.*] [, tbl_name[.*] ...] From Table_references [where whe

Tags: SQL server2012 database Delete Grammar Learning notesToday we summarize the SQL server2012 version of the database deletion syntax, that is, the use of Delete, we have to delete a data table data, for testing, this is my fifth lesson in learning database, knowledge is power!Well, let's see what the grammar says!D

,descitem_id,max (content)From DETAILTEMP1GROUP BY catentry_id,descitem_id@SELECT * from TableA where catentry_id to (select distinct catentry_id from TableA GROUP by CATENTRY_ID,DESCITEM_ID has COUNT (*) >1) @ --5. Delete temporary table The code is as follows Copy Code drop table detailtemp1@--end There are several other ways to share 2, DB2

---- Start Everyone is familiar with how to delete data. We use this to write: Delete from In fact, this write performance is not good, especially when you delete a large amount of data, to achieve better performance, you can use the following method: Delete from What should I do if I want to

Tags: arch const. COM recommends UBI data disconnect ASE LTEReproduced: http://blog.sina.com.cn/s/blog_67aaf4440100v01p.html, slightly modified. --Create a databaseCreate Database ETP; --Connect to databaseConnect to ETP; --DisconnectDisconnect ETP; --See what tables are in the current databaseList tables; --Delete Tabledrop table studentinfo; --Adding a constraint when creating a table 1CREATE TABLE Studentinfo (Stuno int NOT NULL,Stuname varchar (8)

Label:DB2-alter Append/delete/reset column operation 1. Add field ALTER TABLE name add field name type DEMO:1 ALTER TABLE table_name NBSP;ADD N Bsp;column_test VARCHAR (50); 2. Change the field type ALTER TABLE name ALTER COLUMN field name set data type type DEMO: 1 ALTER TABLE table_name ALTER COLU MN column_test Set Data type VARCHAR (3); NOTE: There are operational restrictions for changing the field type. To change the field to a size large