Delete Query Examples There are several ways to use Delete Queries: Empty a Table (Delete All Records) Emptying a table is easy: DELETE FROM table or DELETE * FROM table Delete Records with a Particular Value In this example, all receivable records that are paid are deleted: ...
The SQL WHERE IN clause is used to specify a list of values in aSELECT,INSERT,UPDATE, orDELETEstatement. The clause is used to help narrow down results from a query and is generally used in conjunction with other clauses such asWHERE,HAVING, andORDER BY. Let’s look at our first exam...
PARTITION can be used alongwithaWHEREcondition,inwhichcasethe conditionistestedonlyonrowsinthe listed partitions.Forexample,DELETEFROMt PARTITION (p0)WHEREc<5deletes rowsonlyfrompartition p0forwhich the condition c<5istrue; rowsinanyother partitions arenotcheckedandthusnotaffectedbytheDELETE. The PARTI...
Example 1b: Delete Method Plus ForUpdate KeywordThe following X++ code example is inefficient. It issues a separate SQL delete call to the database server for each record. The xRecord .delete method never deletes more than one record per call....
Example - Using One condition Let's look at a simple Oracle DELETE query example, where we just have one condition in the DELETE statement. For example: DELETE FROM customers WHERE last_name = 'Smith'; This Oracle DELETE example would delete all records from thecustomerstable where thelast_...
DELETEFROMsalesWHEREorder_id =1;Code language:SQL (Structured Query Language)(sql) And Oracle returned the following message: C) Oracle DELETE – delete all rows from a table The following example deletes all rows from thesalestable:
The following example uses a label with the DELETE statement. SQL DELETEFROMTable1OPTION( LABEL = N'label1'); N. Using a label and a query hint with the DELETE statement This query shows the basic syntax for using a query join hint with the DELETE statement. For more information on join...
SQL(Structured Query Language)是一种用于管理关系型数据库的语言。删除操作是其中一种常见的操作,用于从数据库中删除特定记录或整个表。 在SQL中,我们使用DELETE语句来执行删除操作。DELETE语句的基本语法如下: DELETEFROMtable_nameWHEREcondition; 1. 其中,table_name是要删除数据的表的名称,condition是选择要删除数据...
OPTION ( <query_hint> [ ,... n] ) Are keywords that indicate that optimizer hints are used to customize the way the Database Engine processes the statement. For more information, see Query Hints (Transact-SQL). Remarks DELETE can be used in the body of a user-defined function if the...
14 SQL Statements: CREATE LIBRARY to CREATE SCHEMA 15 SQL Statements: CREATE SEQUENCE to DROP CLUSTER CREATE SEQUENCE CREATE SPFILE CREATE SYNONYM CREATE TABLE CREATE TABLESPACE CREATE TABLESPACE SET CREATE TRIGGER CREATE TYPE CREATE TYPE BODY