Solve the Problem of connecting Qt to PostgreSQL in Ubuntu

Solve the Problem of connecting Qt to PostgreSQL in Ubuntu I encountered a problem yesterday and had not solved it for a day. Today, I suddenly solved it. The problem is: in Windows, you need to manually compile the PostgreSQL driver in the Qt

Oracle DML Error Log notes

Oracle DML Error Log notes DML error log is an error log function introduced by Oracle 10gR2 similar to SQL * Loader. The basic principle is to transfer any records that may cause statement failure to an error log table. The specific usage is as

Implement ACFS replication on Oracle 12C

Implement ACFS replication on Oracle 12C Environment: qc550705 & qc550707, AIX6.1 + 12c RAC Primary FS: qc550705:/acfs3 Standby FS: qc550707:/acfsstd1 Prerequisites: the available space of primary FS must be equal to the space in use. Follow these

Merge datasets in Oracle (Change multiple rows to one row)

Merge datasets in Oracle (Change multiple rows to one row) In Oracle, the dataset is merged (multiple rows and one row), and the relationship between table A and table B is one-to-many. Requirements: Query all the data in Table A and merge A

Oracle analysis functions (notes)

Oracle analysis functions (notes) Analytics functions are new types of functions introduced by Oracle Database in 9i and are continuously enhanced in later versions. The analysis function provides the ability to aggregate reference values across

PostgreSQL Stored Procedure return dataset instance

PostgreSQL Stored Procedure return dataset instance Here we use an instance to demonstrate how to return a dataset from a PostgreSQL stored procedure. 1. Prepare the data table first. // Member_categoryCreate table member_category (id serial, name

Introduction to the use of with in Oracle subquery)

Introduction to the use of with in Oracle subquery) Recently I have studied Oracle and want to improve the efficiency and ease of reading of statements I have written. Today's note is about subquery factors. Factor-based query may not necessarily

PostgreSQL Stored Procedure

PostgreSQL Stored Procedure What is a Stored Procedure, which is defined by Baidu Encyclopedia: A Stored Procedure (Stored Procedure) is a set of SQL statements in a large database system to complete specific functions, after the first compilation,

MySQL "Bind on TCP/IP port: Address already in use"

MySQL "Bind on TCP/IP port: Address already in use" Recently, a MySQL instance has been added to the server where MySQL Enterprise Monitor has been deployed. As a result, the MySQL Enterprise Monitor Instance becomes abnormal and cannot be restarted

Oracle 11g transparent gateway connected to sybase Database

Oracle 11g transparent gateway connected to sybase Database I have already compiled two documents about connecting the Oracle transparent gateway to the mysql database and the SQL Server database. I thought that I would not connect to other

How to install Oracle 12c in RedHat Linux 6

How to install Oracle 12c in RedHat Linux 6 Step 1: To install Oracle on RedHat Linux 6, you must install the corresponding software package before installing Oracle. In different operating system environments, the software package requirements are

Oracle 11g Data Loading Methods

Oracle 11g Data Loading Methods Data Loading: SQL * LOADER External table Import/Export SQL * LOADER: SQL * LOADER is an Oracle tool that can load data from external data files to databases. The command for running SQL * LOADER is sqlldr. Two

Manually uninstall Oracle Database 11gR2 using the command line

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MySQL slow log query method

MySQL slow log query method The Method for Analyzing slow query logs using mysqldumpslow is introduced in the past. As the work progresses, another more useful method is found: To record slow logs to the mysql database. MySQL slow log query

Settings for automatic transaction submission by PL/SQL Developer

Settings for automatic transaction submission by PL/SQL Developer Previously, the update table was used on a test machine. There was no commit or PL/SQL Developer. The next day, I checked the table on my computer and found that the record was not

Install mysql using the rpm package and mysql using centos

Install mysql using the rpm package and mysql using centos Steps for installing mysql: First,Http://www.mysql.com/downloads/mysql-4.0.htmlDownload MySQL-client-5.0.96-1.glibc23.x86_64.rpm and MySQL-server-5.0.96-1.glibc23.x86_64.rpm Second,Install

Monitor the running status of database things and database things

Monitor the running status of database things and database things Select dbt. DATABASE_ID, DB_NAME (DBT. DATABASE_ID) 'database name', DBT. TRANSACTION_ID,. NAME,. TRANSACTION_BEGIN_TIME, case. TRANSACTION_TYPE WHEN 1 then' read/write TRANSACTION

[ORACLE] transaction and consistency (trn tbl and ITL basics), trnitl

[ORACLE] transaction and consistency (trn tbl and ITL basics), trnitl4 transactions and consistency 4.1 undo segment header transaction table and transaction control table (trn tbl and TRN ctl) -- Undo header contains the transaction table trn tbl

Trigger creation traps

Trigger creation traps The creation of Oracle triggers differs from the creation of stored procedures, functions, and packages. Trap 1: The current schema is inconsistent with the trigger owner. For example: The current login schema is R5_T150, and

Sybase ase xa distributed transaction support, sybaseasexa

Sybase ase xa distributed transaction support, sybaseasexa By default, Sybase ASE installation does not support XA.You must obtain the DTM License from Sybase. The SYSAM service is not started by default. SYSAM is a service that manages various

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