http://www.tutorialspoint.com/mybatis/mybatis_dynamic_
sql .htm Copyright © tutorialspoint.com MYBATIS - DYNAMIC
SQL MYBATIS - DYNAMIC
SQL Dynamic
SQL is a very powerful feature of MyBatis. It enables programmers write the query using the dynamic
SQL . MyBatis uses a powerful Dynamic
SQL language that can be used within any mapped
SQL statement. Following are the OGNL based Dynamic
SQL expressions provided by MyBatis when, otherwise trim where, set foreach The if Statement The most common thing to do in dynamic
SQL is conditionally include a part of a where clause. For example −
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h"p://vimeo.com/ardanstudios/gophercon BUSINESS PROBLEM Database Application Data� Offer Data� User Data� Online / Coupons� Credit Card� Advice� Daily Deals� Registration� Social� Financial� This is in step with how rela*onal database systems store data. MongoDB’s schemaless database provides great flexibility. hHp://docs.mongodb out of the box • Great MongoDB hos*ng providers • Schemaless database that provides great flexibility • Aggrega*on pipeline to build rules
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© 2018 Percona. 1 Peter Zaitsev Using MySQL for Distributed Database Architectures CEO, Percona PingCAP Infra Meetup, Shanghai, China, May 26, 2018 © 2018 Percona. 2 About Percona Solutions of Thousands of Updates/Sec Traverse Tens of Millions of Rows/Sec Comfortably Handle Several TB Database size © 2018 Percona. 7 Lets Do Some Math 100.000 QPS 10 Queries per User Interaction 10 Paired with Replicated Data © 2018 Percona. 24 Where Replication Happens Storage Level Database Level Application Level © 2018 Percona. 25 Storage Level Replication Replication in SAN/NAS
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Firebird Internals Inside a Firebird Database Norman Dunbar Version 1.2, 13 August 2021 Table of Contents 1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Database Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3. Standard Database Page Header. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4. Database Header Page — Type 0x01
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Introduction 1 Differences between database auditing and the audit plugin 1 Obtain the database auditing feature 2 The range of database auditing 2 The events of database auditing 3 Recorded information information in audit logs 5 General information 5 SQL statement information 6 Connection information 6 Audit operation information 7 Audit log filters and rules 7 Filters 8 Filter rules 9 File formats of 20 RESTRICTED_AUDIT_ADMIN 20 Migration from audit plugin to database auditing 20 TiDB Database Auditing User Guide Introduction Database auditing is an important feature in TiDB Enterprise Edition,
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Firebird Null Guide NULL behaviour and pitfalls in Firebird SQL Paul Vinkenoog Version 1.2, 30 June 2020 Table of Contents 1. What is NULL? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2. NULL support in Firebird SQL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 13.3.1. “Upgrading” ib_udf functions in an existing database . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 13.4. Being prepared for undesired
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