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Which constraint is checked first - primary key or unique key (on different columns)?...


sqlprimary-keyfirebirdunique-indexfirebird-3.0

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Unique indexes are not necessarily in the table_constraints view: so how to find them using the info...


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postgres query multiple tables to check if a value already exists...


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Add constraint to make column unique per group of rows...


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SQL Server - Unique index vs Unique constraint - Re. Duplicate values...


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Why does Oracle not allow DML for null valued referencing columns?...


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How to enforce unique field with MongoDB in Spring...


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Find unique values in python list of dictionaries...


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What is the fastest way to generate 1 billion custom unique code using python and mariadb?...


pythonpython-3.xmariadbunique-index

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Enforce uniqueness with soft deletions...


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Postgres: Sort Unique Index by a separate column...


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I'm trying to do Signup and Login with PHP and MySQL...


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The effect of index on unique constraint columns...


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Best practice to enforce uniqueness on column but allow some duplicates?...


sqlpostgresqldatabase-designunique-index

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need help on update syntax error in sqlite?...


sqlitesql-updatesql-insertupsertunique-index

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make the error send in channel instead of the console so the program wont stop running...


javascriptdatabasemongodbdiscord.jsunique-index

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mongodb - compound unique index using spring data not working...


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Create a row which does not violate a unique index...


sqlsql-serverunique-index

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PostgreSQL Unique index compound key...


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Are composite unique keys indexed in MySQL?...


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Define a unique index in EdgeDB...


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How to create a mongo unique index based on fields and a particular value of a field?...


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Randomly generated public unique ids...


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Is any performance enhancement when we used Unique index instead of non Unique index?...


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How does PostgreSQL enforce the UNIQUE constraint / what type of index does it use?...


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mySQL: update Record / duplicate entry / collate / binary...


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SQLITE create table with UNIQUE column...


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Is it possible to create a UNIQUE index on geometric types?...


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