SQL Create Database, Table, and Index Create a Database To create a database: CREATE DATABASE database_name Create a Table To create a table in a database: CREATE TABLE table_name ( column_name1 data_type, column_name2 data_type, ... ) Example This example demonstrates how you can...
...n])[WITH<backward_compatible_index_option>[,...n]][ON{filegroup_name|"default"}]<object>::={[database_name.[owner_name].|owner_name.]table_or_view_name}<backward_compatible_index_option>::={PAD_INDEX|FILLFACTOR=fillfactor|SORT_IN_TEMPDB|IGNORE_DUP_KEY|STATISTICS_NORECOMPUTE|DROP_...
ApexSQL Defrag is a powerful application used for scheduled analyzing and defragmenting of SQL Server database indexes. Its wide range of features allows users to create and manage custom policies, monitor index fragmentation on multiple servers as well as to create index fragmentation reports.11...
host='10.0.0.200', user='root', password='123', database='my_idb', charset='utf8', client_flag=CLIENT.MULTI_STATEMENTS) cursor = conn.cursor() fk = faker.Faker(locale='en_US')defcreate_table():""" 创建表 """sql =""" DROP TABLE IF EXISTS prefix_tb; CREATE TABLE prefix_tb (...
The CREATE INDEX command is used to create indexes in tables (allows duplicate values).Indexes are used to retrieve data from the database very fast. The users cannot see the indexes, they are just used to speed up searches/queries.The following SQL creates an index named "idx_lastname" ...
Today, many different vegetation indices exist, but they have not been arranged together in one document, nor is it possible to select or query them interactively. We consider it valuable, to have a database tool that can be used to query indices for criteria like sensors and applications. ...
当<database_name>.<schema_name>.<object_name> 是当前数据库名称时,Azure SQL 数据库支持由三部分构成的名称 <database_name> 格式,或者 <database_name>tempdb,<object_name> 以# 或##开头。 如果架构名称 dbo,则可以省略 <schema_name>。 <relational_index_option>::= 指定创建索引时要使用的选项。
SQL Commands SQL SELECT SQL Alias SQL WHERE SQL Operators SQL Logical Operators SQL LIKE, IN SQL ORDER BY SQL Group Functions SQL GROUP BY SQL HAVING SQL INSERT SQL UPDATE SQL DELETE SQL CREATE DATABASE SQL ALTER DATABASE SQL CREATE TABLE SQL ALTER TABLE SQL Integrity Constrain SQL JOINS ...
[ database_name. [ owner_name ] . | owner_name. ] table_or_view_name } <backward_compatible_index_option> ::= { PAD_INDEX | FILLFACTOR = fillfactor | SORT_IN_TEMPDB | IGNORE_DUP_KEY | STATISTICS_NORECOMPUTE | DROP_EXISTING
Java documentation forjava.sql.DatabaseMetaData.getIndexInfo(java.lang.String, java.lang.String, java.lang.String, boolean, boolean). Portions of this page are modifications based on work created and shared by theAndroid Open Source Projectand used according to terms described in theCreative Common...